%0 Journal Article %A Vladimir Rakočević %A Jaroslav Zemánek %T Lower s-numbers and their asymptotic behaviour %J Studia Mathematica %D 1988 %P 231-239 %V 91 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-91-3-231-239/ %R 10.4064/sm-91-3-231-239 %G en %F 10_4064_sm_91_3_231_239