Fr\"ohlich Polarons. Lecture course including detailed theoretical   derivations -- 10th edition
  In the present course, an overview is presented of the fundamentals of continuum-polaron physics, which provide the basis of the analysis of polaron effects in ionic crystals and polar semiconductors. These Lecture Notes deal with "large", or "continuum", polarons, as described by the Fr\"ohlich Hamiltonian. The emphasis is on the polaron optical absorption, with detailed mathematical derivations. 
J. T. Devreese
cond-mat.other