langdrill was originally written by Ionutz Borcoman 
<borco@usa.net>, <borco@borco-ei.eng.hokudai.ac.jp>

It would not be what it is today without the invaluable help of these
people:

Mario Mota mmotta@guest.net
	(The author of VDK which made coding of langdrill a pleasure.
	 Also tested and made sugestion to improve langdrill.)
