Web site for blas:
http://www.netlib.org/blas/

The BLAS (Basic Linear Algebra Subprograms) are routines that provide standard 
building blocks for performing basic vector and matrix operations. The Level 1 
BLAS perform scalar, vector and vector-vector operations, the Level 2 BLAS perform 
matrix-vector operations, and the Level 3 BLAS perform matrix-matrix operations. 
Because the BLAS are efficient, portable, and widely available, they are commonly 
used in the development of high quality linear algebra software, LAPACK for example.

References:

C. L. Lawson, R. J. Hanson, D. Kincaid, and F. T. Krogh, Basic Linear Algebra Subprograms 
for FORTRAN usage, ACM Trans. Math. Soft., 5 (1979), pp. 308--323.
J. J. Dongarra, J. Du Croz, S. Hammarling, and R. J. Hanson, An extended set of FORTRAN 
Basic Linear Algebra Subprograms, ACM Trans. Math. Soft., 14 (1988), pp. 1--17.
J. J. Dongarra, J. Du Croz, S. Hammarling, and R. J. Hanson, Algorithm 656: An extended 
set of FORTRAN Basic Linear Algebra Subprograms, ACM Trans. Math. Soft., 14 (1988), pp. 18--32.
J. J. Dongarra, J. Du Croz, I. S. Duff, and S. Hammarling, A set of Level 3 Basic Linear 
Algebra Subprograms, ACM Trans. Math. Soft., 16 (1990), pp. 1--17.
J. J. Dongarra, J. Du Croz, I. S. Duff, and S. Hammarling, Algorithm 679: A set of Level 
3 Basic Linear Algebra Subprograms, ACM Trans. Math. Soft., 16 (1990), pp. 18--28.
L. S. Blackford, J. Demmel, J. Dongarra, I. Duff, S. Hammarling, G. Henry, M. Heroux, L. 
Kaufman, A. Lumsdaine, A. Petitet, R. Pozo, K. Remington, R. C. Whaley, An Updated Set of Basic Linear Algebra Subprograms (BLAS), ACM Trans. Math. Soft., 28-2 (2002), pp. 135--151.
J. Dongarra, Basic Linear Algebra Subprograms Technical Forum Standard, International 
Journal of High Performance Applications and Supercomputing, 16(1) (2002), pp. 1--111, 
and International Journal of High Performance Applications and Supercomputing, 16(2) (2002), pp. 115--199.

==========

The files have been  moved from .f files to
.inc files (to adopt the WRFDA convention).

The blas source has been changed by the convert.f90 program, turning
the code into free-format.  The only other modification is that the
imbedded tabs in the source have been turned into spaces (otherwise
convert.f90 coughs up a spleen).

Web site for convert.f90:
ftp://ftp.numerical.rl.ac.uk/pub/MandR/convert.f90

!     Copyright CERN, Geneva 1991, 1997 - Copyright and any other
!     appropriate legal protection of these computer programs
!     and associated documentation reserved in all countries
!     of the world.
!     Author: Michael Metcalf  (MichaelMetcalf@compuserve.com)

======================================================