Erdos Conference events included a nice Danube cruise in Budapest in 1999, with Mary Allen Rudin and Jean Pierre Kahane in this photo taken by Ali Eminov:
Budapest River Cruise
River Cruises in Budapest, Hungary
Erdos Conference events included a nice Danube cruise in Budapest in 1999, with Mary Allen Rudin and Jean Pierre Kahane in this photo taken by Ali Eminov: