Thanks to Mark Goodacre, I now have the following articles:
"Panem Nostrum": The Problem of Petition and the Lord's Prayer
Michael Joseph Brown
Journal of Religion, Vol. 80, No. 4 (Oct., 2000), pp. 595-614
The Lucan Text of the Lord's Prayer (Lk XI 2-4)
Novum Testamentum, Vol. 1, Fasc. 2 (Apr., 1956), pp. 103-111.
However, I am still looking for David Baumgardt's Jewish Bible Quarterly
article "Kaddish and Lord's Prayer" [vol 19 (1991)].
But I suspect that this is something that would first have to be scanned
since it appears that JBQ does not have volumes earlier than 1994 or so
Jeffrey B. Gibson, D.Phil. (Oxon)
1500 W. Pratt Blvd.