TY - JOUR AU - P. Drummond AU - C. Gardiner AU - D. Walls BT - Physical Review A DA - Jan-08-1981 DO - 10.1103/PhysRevA.24.914 PY - 1981 SP - 914 EP - 926 T2 - Physical Review A TI - Quasiprobability methods for nonlinear chemical and optical systems UR - http://link.aps.org/doi/10.1103/PhysRevA.24.914 VL - 24 SN - 0556-2791 ER -