Bisognin, E. «Hyperbolic Parabolic Equations with Nonlinearity of Kirchhoff-Carrier Type». Revista Matemática Complutense, vol. 8, vol. 8, n.º 2, 1995, p. 401, doi: https://doi.org/10.5209/rev_REMA.1995.v8.n2.17664.