Transition temperature variations in sodium barium niobate and related compositionsG. BurnsD.F. O'Kane1969Physics Letters A
On Consequences of the different phase and signal velocities in self-induced transparencyE. CourtensA. Szöke1968Physics Letters A
Evidence for a localized magnetic moment in lanthanum intermetallic compoundsA.M. ToxenR.J. Gambino1968Physics Letters A