@article{AIF_1964__14_2_227_0,
     author = {Nomizu, K. and Yano, K.},
     title = {On infinitesimal transformations preserving the curvature tensor field and its covariant differentials},
     journal = {Annales de l'Institut Fourier},
     pages = {227--236},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {14},
     number = {2},
     year = {1964},
     doi = {10.5802/aif.178},
     mrnumber = {30 #4227},
     zbl = {0127.38303},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.178/}
}