At the airport you buy a ticket or a punch-card, as follows:
Ask for a 5 zone ticket (DKK 45) or much more
economically a 5 zone punch-card (10 trips for DKK 250).
Several persons may share a punch-card.
Use the yellow machines at the platform to punch the card or ticket
(one punch pr. person).
Take the train from the airport to the main station of Copenhagen.
Take the S-train (line A, B, B+, or E) to Lyngby St.
Take Bus 388 from Lyngby St. to the stop "Ermelundsvej". (SCHEDULE).