Factorization of Operators of Second Order Linear Homogeneous Ordinary Differential Equations
Donn C. Sandell, F. Max Stein · The Two-Year College Mathematics Journal · 1977
Donn C. Sandell, F. Max Stein, Factorization of Operators of Second Order Linear Homogeneous Ordinary Differential Equations, The Two-Year College Mathematics Journal, Vol. 8, No. 3 (Jun., 1977), pp. 132-141