//-->
Small bipolarons in the 2-dimensional Holstein-Hubbard model. I. The adiabatic limit
Proville, L., (1999)
Phase separation in the strongly correlated Falicov-Kimball model in infinite dimensions
Letfulov, B., (1999)
Small bipolarons in the 2-dimensional Holstein-Hubbard model. II. Quantum bipolarons
Proville, L., (2000)