Semiclassical propagator and van Vleck determinant in a mixed position--momentum space
杨光参
Semiclassical propagator and van Vleck determinant in a mixed position--momentum space
Yang Guang-Can (杨光参)
中国物理B . 2006, (5): 919 -922 .  DOI: 10.1088/1009-1963/15/5/008