On the projective theory of spinors
Compositio Mathematica, Tome 6 (1939) , pp. 136-152.
@article{CM_1939__6__136_0,
     author = {Lee, Hwa-Chung},
     title = {On the projective theory of spinors},
     journal = {Compositio Mathematica},
     pages = {136--152},
     publisher = {Johnson Reprint Corporation},
     volume = {6},
     year = {1939},
     zbl = {0019.23304},
     language = {en},
     url = {archive.numdam.org/item/CM_1939__6__136_0/}
}
Lee, Hwa-Chung. On the projective theory of spinors. Compositio Mathematica, Tome 6 (1939) , pp. 136-152. http://archive.numdam.org/item/CM_1939__6__136_0/