@Article{zbMATH02540371,
Author = {B. O. {Koopman} and A. B. {Brown}},
Title = {{The Riemann multiple-space and algebroid functions}},
FJournal = {{Transactions of the American Mathematical Society}},
Journal = {{Trans. Am. Math. Soc.}},
ISSN = {0002-9947; 1088-6850/e},
Volume = {36},
Pages = {618--626},
Year = {1934},
Publisher = {American Mathematical Society (AMS), Providence, RI},
Language = {English},
Zbl = {60.1024.02}
}