1. On operators, superoperators, hamiltonians and liouvillians;Lowdin;Intern. J. Quantum Chem.,1982
2. Some aspects of the hamiltonian and liouvillian formalisms, the special propagator method, and the equation of motion approach;Lowdin;Adv. Quantum Chem.,1985
3. Partitioning technique, perturbation theory, and rational approximations;Lowdin;Intern. J. Quantum Chem.,1982
4. Linear Algebra for Quantum Theory;Lowdin,1998
5. The Principles of Statistical Mechanics;Tolman,1938