1 Jan 1994 abcd Interact!v Magizin 1. 2 IDG Hungary; BIRO, Istvan; 1012 Budapest; Márvány utca 17; Hungarytel: (361)-156.2967, ...0337, ...3211; fax: (361)-156.9773Hungarian language.1994.2abcd@szocio.tgi.bme.hu