Lee, Myung W. Linearized inversion of reflection traveltimes / by Myung W. Lee and Warren F. Agena. - [Washington]: [United States Government Printing Office], [1991]. - iii, 21 p. : tables ; 28 cm. - 1965 . Includes bibliographical references (p. 21). Subjects--Topical Terms: Seismic reflection methodSeismic traveltime inversionSeismology--Mathematical models Dewey Class. No.: 551.22