Memoirs of the American Mathematical Society, ISSN 0065-9266 ; Volume 124, Number 593
Print version: Singh, Ajit Iqbal, 1944- Completely positive hypergroup actions. Providence, Rhode Island : American Mathematical Society, c1996 xii, 68 pages Memoirs of the American Mathematical Society ; Volume 124, Number 593. ISBN 9780821805398
"November 1996, volume 124, number 593 (fourth of 5 numbers)."