[1]
Skučaitė A. and Štikonas A. 2015. Zeroes and poles of a characteristic function for Sturm–Liouville problem with nonlocal integral condition. Lietuvos matematikos rinkinys. 56, A (Dec. 2015), 95-100. DOI:https://doi.org/10.15388/LMR.A.2015.17.