TY - JOUR AU - M. Saffman AU - D. Montgomery AU - Benjamin Zwickl AU - K. Kuroda AU - Dana Anderson BT - Physical Review A DA - 1993-10 DO - 10.1103/PhysRevA.48.3209 PY - 1993 SP - 3209 EP - 3215 T2 - Physical Review A TI - Transverse instability of counterpropagating waves in photorefractive media VL - 48 SN - 1050-2947 ER -