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), pp. 1–2. doi:10.15388/NA.2014.3.0.