Hai Dani,

1) For PAM250 2 For BLOSUM62 3) For Rt REV Matrices 4) For VT Matrices 5) A very good article regarding substitutional Matrices

Hope this helps

There was an issue with BLOSUM 62. Be sure you get the 'correct' BLOSUM series of substitution tables

You can try this web site : http://www.genome.jp/aaindex/ You'll find about 90 substitution matrices with the publication related. It's an old resource but still full of many references.