Kazakov&nbsp;A.L. Spevak&nbsp;L.F.       Approximate and Exact Solutions to the Singular Nonlinear Heat Equation with a Common Type of Nonlinearity // Bulletin of Irkutsk State University, Series Mathematics. 2020. Vol. 34.  No. 4. P. 18-34. https://doi.org/10.26516/1997-7670.2020.34.18.<br> <img src='/images/wos.gif' width='86' height='16' align='absbottom' alt='WoS' title='Web of Science'>&nbsp;<br><p><input type='button' value=' назад ' onclick='history.back(-1)'>