2 citations to https://www.mathnet.ru/rus/ivm9796

1. Natalia Pavlovna Bondarenko, “Linear differential operators with distribution coefficients of various singularity orders”, Math Methods in App Sciences, 46:6 (2023), 6639  
2. Natalia P. Bondarenko, “SPECTRAL DATA ASYMPTOTICS FOR THE HIGHER-ORDER DIFFERENTIAL OPERATORS WITH DISTRIBUTION COEFFICIENTS”, J Math Sci, 266:5 (2022), 794