Calderón–Zygmund type estimates for singular quasilinear elliptic obstacle problems with measure data Authors Minh-Phuong Tran, Thanh-Nhan Nguyen, Phuoc-Nguyen Huynh Publication year 2023 Index (WoS/Scopus) WoS Publisher Polska Akademia Nauk Journal Studia Mathematica Link https://www.impan.pl/pl/wydawnictwa/czasopisma-i-serie-wydawnicze/studia-mathem…