@article { ISI:A1981LJ63000012,
	title = {SEMI-CLASSICAL APPROXIMATION FOR OFF-SHELL T-MATRIX ELEMENTS FOR MOLECULAR-COLLISIONS},
	journal = {MOLECULAR PHYSICS},
	volume = {42},
	year = {1981},
	pages = {693-702},
	issn = {0026-8976},
	doi = {10.1080/00268978100100541},
	author = {Gerber, R. B.}
}
