A number-theoretic conjecture and its implication for set theory. Halbeisen, L. — 2005 Acta Mathematica Universitatis Comenianae. New Series
Remark on our paper "On bases in Banach spaces" (Studia Math. 170 (2005), 147-171) T. Bartoszyński; M. Džamonja; L. Halbeisen; E. Murtinová; A. Plichko — 2009 Studia Mathematica