Vladimir Kvasnicka Jiri Pospichal T. Kaláb A Study of Replicators and Hypercycles by Typogenetics. 37-54 2001 conf/ecal/2001 ECAL http://link.springer.de/link/service/series/0558/bibs/2159/21590037.htm db/conf/ecal/ecal2001.html#KvasnickaPK01