@article{AIHPA_1988__48_1_77_0,
     author = {Carminati, J. and McLenaghan, R. G.},
     title = {An explicit determination of the space-times on which the conformally invariant scalar wave equation satisfies {Huygens'} principle. {Part} {III} : {Petrov} type {III} space-times},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {77--96},
     publisher = {Gauthier-Villars},
     volume = {48},
     number = {1},
     year = {1988},
     mrnumber = {947160},
     zbl = {0706.35131},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1988__48_1_77_0/}
}