TY  - DATA
AU  - Landis, E. M.
TI  - Second order equations of elliptic and parabolic type 
T2  - Translations of Mathematical Monographs, 
SN  - 9781470445867 (online)
PY  - 1998///
CY  - Providence, R.I.
PB  - American Mathematical Society
KW  - Differential equations, Elliptic
KW  - Differential equations, Parabolic
N1  - Includes bibliographical references (p. 199-202) and index
UR  - https://doi.org/10.1090/mmono/171
ER  -