One of our best theoretical physicists was Gaja Alaga (1924-1988), member of the Croatian Nobility from Backa and Bunjevci Croat.

Professor Gaja Alaga on the left, a member of Croatian Nobility. Source www.knjiznica.phy.hr

He worked not only in Zagreb, but also at the Niels Bohr Institute in Copenhagen, Berkeley, Ludwig-Maximilians University in Munich etc. In 1955, in cooperation with K. Alder from Switzerland, A. Bohr from Denmark and B. Mottelson from the USA, he discovered the so called K-selection rules and intensity rules for beta and gamma transitions in deformed nuclei.

Warm reception of professor Gaja Alaga in China. Source www.knjiznica.phy.hr