1.
Paukštaitė G, Štikonas A. Green’s Matrices for First Order Differential Systems with Nonlocal Conditions∗. MMA [Internet]. 2017 Mar. 18 [cited 2025 Aug. 27];22(2):213-27. Available from: https://jbem.vilniustech.lt/index.php/MMA/article/view/890