TY - BOOK AU - Sen,Ashish K. AU - Smith,Tony E. TI - Gravity models of spatial interaction behavior SN - 3540600264 (alk. paper) U1 - 388.015 20 PY - 1995/// CY - Berlin, New York PB - Springer-Verlag KW - Transportation KW - Mathematical models KW - Space in economics N1 - Includes bibliographical references (p. [538]-554) and indexes ER -