@Article{zbMATH03049947,
Author = {Th. {Motzkin}},
Title = {{Relations between hypersurface corss ratios, and a combinatorial formula for partitions of a polygon, for permanent preponderance, and for non- associative products}},
FJournal = {{Bulletin of the American Mathematical Society}},
Journal = {{Bull. Am. Math. Soc.}},
ISSN = {0002-9904},
Volume = {54},
Pages = {352--360},
Year = {1948},
Publisher = {American Mathematical Society (AMS), Providence, RI},
Language = {English},
DOI = {10.1090/S0002-9904-1948-09002-4},
Zbl = {0032.24607}
}