Column Reduction of Polynomial Matrices; Some Remarks on the Algorithm of Wolovich. - A. J. Geurts; Cornelis Praagman (Eur. J. Control, 1996)

Algorithm 767: A Fortran 77 Package for Column Reduction of Polynomial Matrices. - A. J. Geurts; Cornelis Praagman (ACM Trans. Math. Softw., 1997)