“The classical solutions for nonlinear parabolic integrodifferential equations,” Journal of Integral Equations and Applications, 1 (1988), 249-263.
“On the existence of the weak solution and the regularity of the free boundary to a one-dimensional two-phase Stefan problem,” (with J.R. Cannon), Journal of Differential Equations, 73 (1988), 104-118.
“A uniqueness theorem for a class of nonlinear parabolic inverse problems,” (with J.R. Cannon), Inverse Problems, 4 (1988), 411-416.
“The classical solution of the periodic Stefan problem,” Journal of Partial Differential Equations, 1 (1988), 43-60.
“A class of nonlinear nonclassical parabolic problems,” (with J.R. Cannon), Journal of Differential Equations, 79 (1989), 266-288.
“A uniqueness theorem for nonclassical parabolic problems,” Applicable Analysis, 34 (1989), 67-78.
“An iteration procedure for a class of integrodifferential equations of parabolic type,” (with J.M. Chadam), Journal of Integral Equations and Applications, 2 (1989), 31-47.
“A class of multidimensional nonclassical parabolic equations,” “Theory and Applications of Differential Equations”, (Ed. A.R. Aftabizadel), Vol. 1, Ohio University Press, (1989), 122-127.
“A degenerate free boundary problem arising from the moisture evaporation in partially saturated media,” “Continuum Mechanics and Its Applications,” (Ed. G.A.C. Graham), Hemisphere Publishing Corp., NY, (1989), 621-629.
“A periodic free boundary problem arising from chemical reaction-diffusion processes,” (with J.R. Cannon), Nonlinear Analysis, TMA, 15 (1990), 939-948.