Dotplot reference

[Nicolas.Galtier at univ-lyon1.fr]

In article <50gqci$18f at mserv1.dl.ac.uk>, "H.C.Whitaker" <H.C.Whitaker at dl.ac.uk> writes:
> Sergey Shmul Levin <slevin at moonbeam.aecom.yu.edu wrote;
> 
> > DOTPLOT can be used to see dissimilarites in the
> > alignment pairs (what is the original refernce for it, though?)
> 
> Maizel and Lenk 1981. "Enhanced graphic matrix analysis of nucleic acid 
> and protein sequences." Proceedings of the National Academy of Science 
> USA vol 78(12), p7665-7669. 
> 

I have a earlier reference :

Gibbs, A.J., and McIntyre, G.A. 1970. The diagram: a method for comparing sequences. Its use with aminoacid and nucleotide sequences. Eur. J. Biochem. 16: 1-11.

Nicolas