TY  - BOOK
AU  - Lewins,Jeffery
TI  - Importance, the adjoint function: the physical basis of the variational and perturbation theory in transport and diffusion problems 
U1  - 533.13 
PY  - 1965///
CY  - Oxford
PB  - Pergamon Press
KW  - Transport theory
KW  - Diffusion
KW  - Calculus of variations
KW  - Perturbation (Mathematics)
N1  - Includes index; Bibliography: p. 161-168
ER  -