TY  - JOUR
T1  - An extension of Physical Theory of Diffraction concept for aperture radiation problems
A1  - Altintas, A.
A1  - Buyukdura, O.M.
A1  - Pathak, P.H.
JA  - Radio Science
Y1  - 1994
VL  - 29
SP  - 1403
EP  - 1407
ER  -