This series was published in the 1960s under a grant from the Office
of Naval Research as 105 pamphlets. The pamphlets were then grouped by
subject and republished under a grant from the National Science
Foundation. For titles of papers in the eleven volumes of this series,
refer to the AMS publication Index to Translations Selected by the
American Mathematical Society. No further volumes will be
published in this series, however, back volumes are available. (ISSN
0065-9290) Hardcover; reprints in softcover.