(By click on name, you will be connected to accompanying web-site)

Ruđer Bošković Institute

Croatian Academic Research Net

Hrvatsko fizikalno društvo   /   Croatian Physics Society

International Radiation Physics Society

CERN   /   European Organization for Nuclear Research

European Physics Community

Correspondence Chess Association at Croatian Chess Federation

Hrvatski olimpijski odbor   /   Croatian Olimpic Committee

European Correspondence Chess Zone

International Correspondence Chess Federation

Federation Internationale des Eches   /   World Chess Federation