TY - JOUR AU - Kroll, Martin TI - Rate optimal estimation of quadratic functionals in inverse problems with partially unknown operator and application to testing problems JO - ESAIM: Probability and Statistics PY - 2019 SP - 524 EP - 551 VL - 23 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ps/2018027/ DO - 10.1051/ps/2018027 LA - en ID - PS_2019__23__524_0 ER -