5400  General reference works (handbooks, dictionaries, bibliographies, etc.)


5401  Instructional exposition (textbooks, tutorial papers, etc.)


5402  Research exposition (monographs, survey articles)


5403  Historical (must also be assigned at least one classification number from Section 01)


5404  Explicit machine computation and programs (not the theory of computation or programming)


5406  Proceedings, conferences, collections, etc.



54Axx  Generalities

54Bxx  Basic constructions

54Cxx  Maps and general types of spaces defined by maps

54Dxx  Fairly general properties

54Exx  Spaces with richer structures

54Fxx  Special properties

54Gxx  Peculiar spaces

54Hxx  Connections with other structures, applications

54J05  Nonstandard topology [See also 03H05]

