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V^. c:>v^CCC/ Ifrt^y^w RECEIVED DEC 7 1978 American Railway ,stallm^p« Engineering Association— Bulletin Bulletin 669 September-October 1978 Proceedings Vol. 80* CONTENTS Some Tracic Problems Associated With Projected Conven- tional High Speed North American Locomotives 1 Thermal Buckling of Straight Tracks; Fundamentals, Analyses, and ...

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