“THE ESSENTIAL SPECTRUM OF THE SCHRÖDINGER OPERATOR FOR A THREE-PARTICLE SYSTEM WITH MASSES M1 = M2 = c∞ AND M3 < ∞”. Innovations in Science and Technologies 2, no. 6 (June 15, 2025): 678–687. Accessed June 17, 2025. https://www.innoist.uz/index.php/ist/article/view/1052.