Memoirs of the American Mathematical Society, ISSN 0065-9266 ; Volume 190, Number 888
Print version: Chalkley, Roger, 1931- Basic global relative invariants for nonlinear differential equations. Providence, Rhode Island : American Mathematical Society, c2007 xii, 365 pages Memoirs of the American Mathematical Society ; Volume 190, Number 888. ISBN 9780821839911
"Volume 190, Number 888 (first of three numbers)."