1. Time Evolution and Path Integrals in Schrödinger Quantum Mechanics
   cand. scient. Thesis. University of Copenhagen (1982).
   
   
2. A Many Particle Adiabatic Invariant of Strongly Magnetized Pure Electron Plasmas
   Ph.D. Thesis., University of California, San Diego (1988).

1. Water and Electricity (in Danish) (with M. Brøns and P.H. Damgaard) Naturens Verden 4,
   154 (1978).
   
   
2. Drop Impact (in Danish) (with P.H. Damgaard) Naturens Verden 11, 369 (1978) .
   
   
3. Floating Drops (in Danish) (with P. Thejll and P.H. Damgaard) Naturens Verden 9, 318
   (1979).
   
   
4. Drop Impact on a Fluid Surface (in Danish) Fysisk Tidsskrift 77 , 107 (1979) .
   
   
5. On Inertia, Gravitation and Cosmology (in Danish) (with J. Teuber) Astronomisk
   Tidsskrift 15 , 116 (1982) .
   
   
6. A Paradox in the Classical Interpretation of the Stern-Gerlach Experiment
   (with P. Alstrøm and R. Mattuck) American Journal of Physics 50 697 (1982).
   
   
7. Brownian Motion (in Danish) (with P.H. Damgaard) Naturens Verden 10 , 249 (1983) .
   
   
8. A Trotter Formula Computation of the Kernel for the Harmonic Oscillator
   Reports in Mathematical Physics 21 , 205 (1985).
   
   
9. Collisional Dynamics of a Strongly Magnetized Pure Electron Plasma
   (with T.M.O'Neil) Physics of Fluids 28 , 3241 (1985).
   
   
10. Inertia in Friedmann Cosmologies (with J. Teuber) Il Nuovo Cimento 97B, 131 (1987).
    
    
11. Molecular Dynamics Simulation of Strongly Magnetized Pure Electron Plasmas
    (with T.M. O'Neil) Physics of Fluids 30, 2613 (1987).
    
    
12. Collisional Relaxation of a Strongly Magnetized Pure electron Plasma
    (with T.M. O’Neil, B.R. Beck, J. Fajans and J.H. Malmberg)
    in: The Yameda Conference on strongly Coupled Plasma Physics, ed. S. Ichimaru,
    Tokyo (1989).
    
    
13. Stability of free Surface Sediment Flow Journal of Geophysical Research 95 C11,
    20363 (1990).
    
    
14. Wavelet Analysis of Double Quasar Photometric Data
    (with L. Villemoes, J. Teuber and R. Florentin Nielsen), Astronomy and
    Astrophysics 255, L20-L23 (1992).
    
    
15. A Note on Positivity of of Equilibrium Populations in Radiative Transfer Theory
    (with P.A. Thejll and P.H. Damgaard), Astronomy and Astrophysics 254, 422 (1992).
    
    
16. Mathematics between Man and Machine (in Danish) (with V.L. Hansen and S. Markvorsen),
    in: "Matematikundervisning i Lyset og Skyggen af edb",
    ed. G. Fosgerau et al, KvaN, (1996).
    
    
17. Coriolis effects in the dynmaics of a rotating elastic structure ,
    with M. Brøns and W. Kliem, Acta Mechanica 116, 223 (1996).
    
    
18. Finite Metric Spaces of Strictly Negative Type , with S. Markvorsen, P.Lisonek
    and C. Thomassen, Linear Algebra and its Applications 270, 255 (1998).
    
    
19. ESGI 32 Final Report, (with J. Gravesen) Department of Mathematics,
    Technical University of Denmark (1998).
    
    
20. A Many-Particle Adiabatic Invariant, in Hamiltonian Systems with Three or More Degrees of Freedom,
    NATO Advanced Study Institute, C. Simo (ed.)}, Kluwer 1999.
    
    
21. Exponentially Long Equilibration times in a 1-D collisional Model of a Classical Gas,
    (with G. Benettin), Journal of Statistical Mechanics 94, 871 (1999).
    
    
22. Experimentel Matematics–Mathematical Experiments (in Danish)
    (with S. Markvorsen) Naturens Verden 3, 33 (1999).
    Also reprinted in a special issue supported by the Danish Natural
    Science Research Council (2000).
    
    
23. Hyperbolic Spaces are of Strictly Negative Type (with S.L.Kokkendorff and S. Markvorsen),
    Proceedings of the American Mathematical Society 130, 175, (2002).
    
    
24. Construction of the Simplest Model to Explain Complex Receptor Activation Kinetics
    (with R. Bywater and P. Røgen), Journal of Theoretical Biology 215, (2002).
    
    
25. Protein Evolution, with J. Chapman, J. Gravesen, R. Ketzsher, A. Lacey, G.Richardson, N. Stringfellow,
    ESGI 40, Final Report (2002).
    
    
26. Stability of a Heavy Rigid Body Sinking in an Ideal Fluid, with M. Deryabin, ZAMP 54, 1 (2003).
    
    
27. En plads i solen (in Danish) Matematikken i Perspektiv 3 (2003).
    
    
28. High-dimensional Bowling , with M. Deryabin, Regular and Chaotic Dynamics 8 , 319, (2003).
    
    
29. I forhold til hvad roterer Jorden? (in Danish) , with J.M. Knudsen, KVANT 4 , 10, (2003).
    
    
30. De Novo Generation of Molecular Structures using Optimization to Selcet Graphs on a Given Lattice,
    with with R. Bywater, P. Røgen, T. Poulsen,
    J. Chem. Information, and Computer Science 44 , (3), 856 (2004).
    
    
31. Experiences in Evaluating Outcome in Tool Based Competence Building Education in
    Dynamical Systems using Symbolic Computer Algebra , with J. Perram and M. Andersen,
    Int. J. Technology in Mathematics Education 11, 4, 139, (2005).
    
    
32. Intelligent Design (in Danish), Aktuel Naturvidenskab 5, 30, (2005).
    
    
33. Beneath the Wheel, with K. Dias, J. Gravesen, P. Larsen, C.Please, N. Radulovic,
    and L. Wang, ESGI 54 Final Report, (2005).
    
    
34. DSTL: The Aggregation Problem , with T. Gould and M. Zyskin,
    Report of the 56th European Study Group with Industry, University of Bath UK (2006).
    
    
35. Distance of Sample Measurement Points to Prototype Catalog Curve , with J. Perram, R. Piche, U. Ullum and M. Krätzschmar,
    Journal of Physics: Conference Series, 52 (Eds. R. Melnik and F. Voss: Mathematics for Industry in Denmark), (2006).
    
    
36. Maersk Institute sets record in distance learning, , with J. Perram, S. Markvorsen and J.J. Henriksen,
    News from The Maersk Institute for Production Technology, SDU, June 2006.
    
    
37. Optimization and Stochastic Evaluation of Road Preservation Plans , with T. Humphries, C. Ball, J. Cross and S. Sen,
    Report of the Pacific Institute of Mathematical Sciences International Problem Solving Workshop, Simon Fraser University (2006).
    
    
38. Output from the Greenwood Traffic Speed Deflectometer , with J. Krarup, S. Rasmussen, and L. Aagaard,
    2nd ARRB Group Conference, Canberra, Australia, 29 October - 2 November 2006.
    
    
39. Etch Rate Prediction for Ion Milling Machines , with J. Ockendon, P.J. Dellar, and C. S. Bohun
    Report of II. Workshop on Industrial Applications, City University of Hong Kong (2007).
    
    
40. Industrien Udfordrer Matematikerne (in Danish), Aktuel Naturvidenskab 1, 20, (2007).
    
    

in preparation:

1. Hamiltonian Dynamics of a Micromixer with M. Deryabin
   
   
2. XM: License to Thrill. with with S. Markvorsen, in
   Eksperimentel Matematik (in Danish). Matematiklæreforeningen (2007).

1. Dynamics on the Riemann Sphere (with C. Lunde Petersen, editors),
   European Mathematical Society Publishing House, ISBN 3-03719-011-6, 2006.
   
   
2. Elements of Newtonian Mechanics (with J.M. Knudsen ), 3rd edition, Springer Verlag, 2002.
   
   
3. Matematik og Modellering med Matematik (in Danish),
   with V.L. Hansen and Uwe Thimm, Gyldendal 2000.
   
   
4. Real and Complex Dynamical Systems (with B.Branner, editors).
   NATO Advanced Study Institute, Hillerød 1993. [Kluwer, 1995]