Urazboev, G.U., and I.I. Baltaeva. “Integration of the Negative Order Nonlinear Schr¨odinger Equation With Self-Consistent Source”. Bulletin of the Karaganda University. Mathematics Series, vol. 121, no. 1, Mar. 2026, pp. 228-37, doi:10.31489/2026m1/228-237.