Rockland ,C. (1975). Hypoellipticity and Eigenvalue Asymptotics. Springer-Verlag.
Chicago Edition CitationRockland ,C. Hypoellipticity and Eigenvalue Asymptotics. Berlin: Springer-Verlag, 1975.
MLA Edition CitationRockland ,C. Hypoellipticity and Eigenvalue Asymptotics. Springer-Verlag, 1975.
Warning: These citations may not always be 100% accurate.