Ivanauskas, F. and Rutkauskas, S. 2014. 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. Nonlinear Analysis: Modelling and Control. 19, 3 (Oct. 2014), 1–2. DOI:https://doi.org/10.15388/NA.2014.3.0.