A lemma on the topological index
Tibor Radó (1936)
Fundamenta Mathematicae
Similarity:
Tibor Radó (1936)
Fundamenta Mathematicae
Similarity:
Eugen Futáš (1969)
Matematický časopis
Similarity:
A. Ward (1937)
Fundamenta Mathematicae
Similarity:
Beloslav Riečan (1971)
Matematický časopis
Similarity:
Anthony Morse, John Randolph (1945)
Fundamenta Mathematicae
Similarity: