Géza Kolumbán Z. Jako Michael Peter Kennedy Enhanced versions of DCSK and FM-DCSK data transmission systems. 475-478 1999 conf/iscas/1999 ISCAS (4) http://doi.ieeecomputersociety.org/10.1109/ISCAS.1999.780045 db/conf/iscas/iscas1999-4.html#KolumbanJK99