The chapter
" III. AT THE CROSSROADS : A STUDY OF MOTHER-GODDESS CULT SITES"
in D D Kosambi's
Myth and Reality has this approach.
The book is available for download at
Rise of a Folk God : Vitthal of Pandharpur
by
Ramchandra Chintaman Dhere
Oxford University Press
is there in googlebooks.
--
Prof.Nagaraj Paturi
Hyderabad-500044