TY - GEN AU - Lu,Nandou AU - Adhikari,Jhumpa AU - Kofke,David A TI - Variational formula for the free energy based on incomplete sampling in a molecular simulation SN - 1539-3755 PY - 2004///0204 N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/PhysRevE.68.026122 ER -