@article { ISI:A1968A856800004,
	title = {A LOWER-BOUND PROPERTY OF ADIABATIC PHASE SHIFTS},
	journal = {MOLECULAR PHYSICS},
	volume = {14},
	year = {1968},
	pages = {117-\&},
	issn = {0026-8976},
	doi = {10.1080/00268976800100131},
	author = {Coulson, C. A. and Gerber, R. B.}
}
