TY - BOOK TI - Integral equations: theories, approximations and applications SN - 978-3-0365-2239-5 PY - 2021/// CY - Basel, Switzerland PB - MDPI UR - https://drive.google.com/file/d/1zHRdvT2vqAVFPM2aE7bbzEBhjGCts3Hx/view?usp=share_link ER -