%0 Journal Article %A Feng, Ya-Fang %T Consecutive square-free values of the type $x^{2}+y^{2}+z^{2}+k$, $x^{2}+y^{2}+z^{2}+k+1$ %J Czechoslovak Mathematical Journal %D 2023 %P 297-310 %V 73 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2022.0154-22/ %R 10.21136/CMJ.2022.0154-22 %G en %F 10_21136_CMJ_2022_0154_22