(1)
Sood, V. K.; Rier Jr., J. P.; Fennell, P. B.; Whitaker, A.; Ghosh, R. C. Effect of Ozone on the Isozymic Profile of Callus Tissues in Vitro of <I>Pinus roxburgii< I> Sarg. Indian Forester 1985, 111, 119-122.