@article{ASNSP_1981_4_8_1_103_0,
     author = {McClendon, J. F.},
     title = {Classifying relative principal fibrations with loop space fibers},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {103--118},
     year = {1981},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 8},
     number = {1},
     mrnumber = {616902},
     zbl = {0478.55011},
     language = {en},
     url = {https://www.numdam.org/item/ASNSP_1981_4_8_1_103_0/}
}