TY - JOUR T1 - Error estimates in weighted Sobolev norms for finite element immersed interface methods JF - Computers & Mathematics with Applications Y1 - 2019 A1 - Luca Heltai A1 - Nella Rotundo PB - Elsevier BV VL - 78 UR - https://doi.org/10.1016/j.camwa.2019.05.029 ER -