Electronic Journal of Differential Equations, Conference 03 (1999), pp. 1-11. Title: On oscillatory solutions of third order differential equation with quasiderivatives Author: Miroslav Bartusek (Masaryk Univ., Czech Republic) Abstract: This paper gives sufficient conditions under which all oscillatory solutions of a third order nonlinear differential equation with quasiderivatives vanish at infinity. Applications to third order differentials equation with a middle term are also given. Published July 10, 2000. Math Subject Classifications: 34C10. Key Words: Oscillatory solutions; third order differential equations.