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Looking for article: Film Developer dilution by Paul R. Schranz, Darkroom and Creative Camera Techniques, Jul/Aug 1990

I've got it. It's only four pages. I'll create a PDF this afternoon and upload it.
 
Sorry Raghu, in my 48 years in photography I never heard of that developer.
I must admit, I was expecting much more from that article.

Unitol was probably available only in UK but it was quite popular apparently:

'Good Photography' magazine for November 1961 carried an announcement that Johnsons of Hendon had filled their one-millionth bottle of Unitol. This meant enough developer had been manufactured to process 16.5 million films in 10 years.