TY - JOUR
AU - Y. Demkov
AU - V. Ostrovskii
AU - E. Solov'ev
BT - Physical Review A
DA - Jan-11-1978
DO - 10.1103/PhysRevA.18.2089
PY - 1978
SP - 2089
EP - 2096
T2 - Physical Review A
TI - Two-state approximation in the adiabatic and sudden-perturbation limits
UR - http://link.aps.org/doi/10.1103/PhysRevA.18.2089
VL - 18
SN - 0556-2791
ER -