TY - BOOK AU - Agrawal, Ashok Kumar TI - Analysis of transient magnetic variations: case studies for sub-surface structure and source field characteristics PY - 1983/// CY - Bombay PB - IIG KW - Magnetic VariationsTransient Magnetic Variations N1 - A Thesis submitted for the degree of Doctor of Philosophy of the University of Bombay under the guidance of Professor B. P. Singh ER -