Hosokawa, Fujitsugu y Shin´ichi Suzuki. «On Singular Cut-and-Pastes in the 3-Space with Applications to Link Theory». Revista Matemática Complutense, vol. 8, vol. 8, n.º 1, 1995, p. 155, doi: https://doi.org/10.5209/rev_REMA.1995.v8.n1.17712.