Krivonos, S.; Lechtenfeld, Olaf; Sorin, A.: Minimal realization of ℓ-conformal Galilei algebra, Pais-Uhlenbeck oscillators and their deformation. In: Journal of High Energy Physics 2016 (2016), Nr. 10, 78. DOI:
http://dx.doi.org/10.1007/JHEP10(2016)078