FirstSearch
has several databases on it (available within the Library of Congress
only). Scroll down and choose the one called GPO. If the titles
you find are 1993
or later, they should be available in the Newspaper and Current
Periodical Reading Room's Government Depository Collection.
Request
them using the SuDocs (Superintendent of Documents) number.
A public version of the GPO catalog is available at GPO
Access.