Betancor, Jorge J., Raquel Crescimbeni, Juan C. Fariña, and Lourdes Rodríguez-Mesa. 2013. “Multipliers and Imaginary Powers of the Schrödinger Operators Characterizing UMD Banach Spaces”. Annales Fennici Mathematici 38 (1):209-27. https://doi.org/10.5186/aasfm.2013.3813.