Author: Kowalski, Oldřich
- 
Kowalski, Oldřich:
		Orbits of transformation groups on certain Grassmann manifolds.
		
			(English).
Czechoslovak Mathematical Journal,
		vol. 18
			(1968),
			issue 1,
		pp. 144-177
- 
Kowalski, Oldřich:
		Orbits of transformation groups on certain Grassmann manifolds. [Continuation].
		
			(English).
Czechoslovak Mathematical Journal,
		vol. 18
			(1968),
			issue 2,
		pp. 240-273
- 
Kowalski, Oldřich:
		Über $U$-Homomorphismen und Homomorphismen der ganzen $l$-Halbgruppen auf $l$-Halbgruppen mit der guten Arithmetik.
		
			(German) [On $U$-homomorphisms and homomorphisms of the whole $l$-semigroups on $l$-semigroups with the good arithmetics].
Czechoslovak Mathematical Journal,
		vol. 18
			(1968),
			issue 1,
		pp. 1-15
 
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