Ackerman, R.F. Regeneration following strip clear cutting, scarfication and slash d isposal in a lodgepole pine stand / by R.F. Ackerman. - Ottawa : Dept. of Forestry, 1962. - 16 p. : ill. ; 25 cm. - Technical note ; no. 123. . Includes bibliographical references. Subjects--Topical Terms: Forest reproduction -- Canada. Pine -- Canada.