TY - BOOK AU - Nesbet Robert K TI - Variational principles and methods in theoretical physics and chemistry SN - 978-0-521-80391-5 U1 - 530.15564 PY - 2003/// CY - Cambridge PB - CUP KW - Calculus of variations KW - Mathematical physics KW - Physical chemistry-mathematics KW - Theoretical chemistry-mathematics ER -