TY - RPRT TI - Two-beam modulation instability in noninstantaneous nonlinear media. AU - I Velchev AU - R Pattnaik AU - J Toulouse PY - 2003 DO - 10.1103/physrevlett.91.093905 UR - https://pubmed.ncbi.nlm.nih.gov/14525186/ ID - 14525186 ER -