Ivanauskas, F.; Rutkauskas, S. Special Issue Dedicated to Professor M. Sapagovas 75th Anniversary NUMERICAL ANALYSIS FOR BOUNDARY VALUE PROBLEMS WITH NONLOCAL CONDITIONS. Guest Editors: Mifodijus Sapagovas, Regimantas Čiupaila, Artūras Štikonas. Preface. NAMC 2014, 19 (3), 1-2. https://doi.org/10.15388/NA.2014.3.0.