@article{AMI_1998_25_a9,
     author = {S\'andor B\'acs\'o and Ildik\'o Papp},
     title = {*P-Finsler spaces with vanishing {Douglas} tensor},
     journal = {Annales mathematicae et informaticae},
     pages = {91--95},
     publisher = {mathdoc},
     volume = {25},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_1998_25_a9/}
}