@book{30171,
	author = {Ramisa Ahmad (F17A14G06001)},
	title = {Infinitesimal vector field and differential invariant of some projective actions of lorentz group},
	publisher = {(unpublished)},
	year = {2019},
	address = {Faisalabad},
	note = {Submitted in fulfillment of the requirements for the degree of M.Phil in Mathematics to the Faculty of Basic Science.}
}