@article{PUIM_2000__2000_88_258138,
     author = {Boris A. Rosenfeld},
     title = {Differentiable functions in associative and alternative algebras and smooth surfaces in projective spaces over these algebras},
     journal = {Publications de l 'Institut Math\'ematique},
     pages = {67},
     publisher = {mathdoc},
     volume = {2000},
     number = {88},
     year = {2000},
     zbl = {1058.53013},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/PUIM_2000__2000_88_258138/}
}