TY - JOUR AU - M. Saffman AU - A. Zozulya AU - Dana Anderson BT - Journal of the Optical Society of America B DA - 1994-01 DO - 10.1364/JOSAB.11.001409 PY - 1994 EP - 1409 T2 - Journal of the Optical Society of America B TI - Transverse instability of energy-exchanging counterpropagating waves in photorefractive media VL - 11 SN - 0740-3224 ER -