The Fiftieth Anniversary of Comenius University in Bratislava : 1919-1969 /
Horizontal Froth Pumps.
Flotation /
Flotation - Reifen.
Flotator ugleobogatiteľnoj fabriki.
Die Flotation ein Aufbereitungsprozess.
Untersuchungen zur Unterdruck-Flotation /
Anniversary volume.
Mineral and coal flotation circuits : their simulation and control /
10th anniversary /
75th anniversary of Slovak folklore in Canada. /
The Reader`s Digest 20th anniversary anthology.
70th anniversary of the National Slovak Society.
Fuel cells: grove anniversary symposium `89. : Proceedings of the grove anniversary fuel cell symposium, London, September 18-21, 1989. /
70th anniversary of the Slovak national uprising : 1944-2014 /
Groundhog day. Special 15th anniversary edition /
70th anniversary of the European convention on Human Rights /
Conference Dedicated to the 100th Anniversary of the Death of Dr. Nicolaus Thege-Konkoly, and 145th Anniversary of Founding of the Hurbanovo Observatory /
Die Flotation von Brauneisenerzschlämmen. Dissertation...eines Doktor-Ingenieurs...der Bergakademie Clausthal.
Beiträge zum Haftvorgang bei der Flotation, zur MHD-Scheidung und zur Probenahme.