Analysis of photoproduction and electroproduction of pions from chiral effective lagrangians and determination of off-mass-shell vertex functions of the delta resonance / Tapan Kanti Chaudhury. [PhD Thesis] Chaudhury, Tapan Kanti Physics 539.72162 CHA Thesis (Ph.D.) -- Department of Physics, University of Dhaka, 1982 Includes bibliographical references Dhaka : University of Dhaka, 1982. 1982. 1982 Text vi, 213 p. : eng