ISRAEL JOURNAL OF MATHEMATICS, vol. 180, no. 1, page. 93 - 118, 2010-12
JOURNAL OF FUNCTIONAL ANALYSIS, vol. 259, no. 9, page. 2437 - 2454, 2010-11-01
PUBLICATIONS OF THE RESEARCH INSTITUTE FOR MATHEMATICAL SCIENCES, vol. 46, no. 1, page. 171 - 182, 2010-02