Algorithm 253 [F2]: eigenvalues of real symmetric matrix by the QR method. - Peter A. Businger (Commun. ACM, 1965)

Algorithm 254 [F2]: eigenvalues and eigenvectors of a real symmetric matrix by the QR method. - Peter A. Businger (Commun. ACM, 1965)

FORTRAN subroutines for scalar products. - Peter A. Businger (Commun. ACM, 1967)

Algorithm 358: singular value decomposition of a complex matrix [F1, 4, 5]. - Peter A. Businger; Gene H. Golub (Commun. ACM, 1969)