LAPACK 3.12.0
LAPACK: Linear Algebra PACKage

Functions  
subroutine  clarfb (side, trans, direct, storev, m, n, k, v, ldv, t, ldt, c, ldc, work, ldwork) 
CLARFB applies a block reflector or its conjugatetranspose to a general rectangular matrix.  
subroutine  dlarfb (side, trans, direct, storev, m, n, k, v, ldv, t, ldt, c, ldc, work, ldwork) 
DLARFB applies a block reflector or its transpose to a general rectangular matrix.  
subroutine  slarfb (side, trans, direct, storev, m, n, k, v, ldv, t, ldt, c, ldc, work, ldwork) 
SLARFB applies a block reflector or its transpose to a general rectangular matrix.  
subroutine  zlarfb (side, trans, direct, storev, m, n, k, v, ldv, t, ldt, c, ldc, work, ldwork) 
ZLARFB applies a block reflector or its conjugatetranspose to a general rectangular matrix.  