@article{Maciejewski:2015,
author
=
"A.Maciejewski and M.Przybylska and T.Stachowiak",
title
=
"Comment on "Solvability of the two-photon Rabi Hamiltonian"",
journal
=
"Physical Review A",
volume
=
"Vol. 91",
pages
=
"1--2",
year
=
"2015",
}