TY - SER TI - Dissertation abstracts international B: the sciences and engineering SN - 0419-4217 PY - 1979///-1980 CY - Ann Arbor, Michigan PB - University Microfilms International KW - Science KW - Abstracts KW - Periodicals KW - United States KW - Engineering KW - Dissertations, Academic N1 - Includes index; Publication no.: UMI# 2398 ER -