TY - JOUR AU - Tomasz Jakubowski AU - Sebastian Sydor TI - Schrödinger perturbations with concave control function JO - Filomat PY - 2019 SP - 6401 VL - 33 IS - 19 UR - http://geodesic.mathdoc.fr/articles/10.2298/FIL1919401J/ DO - 10.2298/FIL1919401J LA - en ID - 10_2298_FIL1919401J ER -