Memoirs of the American Mathematical Society, ISSN 1947-6221 ; Volume 222, Number 1043
Print version: Sobolev, A. V. (Aleksandr Vladimirovich) Pseudo-differential operators with discontinuous symbols : Widom’s conjecture. Providence, Rhode Island : American Mathematical Society, c2011 v, 104 pages Memoirs of the American Mathematical Society ; Volume 222, Number 1043. ISBN 9780821884874
"March 2013, Volume 222, Number 1043 (second of 5 numbers)."