Memoirs of the American Mathematical Society, ISSN 0065-9266 ; number 658
Print version: Riahi, Hasna. Study of the critical points at infinity arising from the failure of the Palais-Smale condition for n-body type problems. Providence, Rhode Island : American Mathematical Society, [1999] viii, 112 pages ; 26 cm Memoirs of the American Mathematical Society ; no. 658 ISBN 9780821808733
"Volume 138, number 658 (first of 4 numbers)."
Includes bibliographical references (pages 111-112)