%0 Journal Article %A Andreas Maurischat %T Prolongations of $t$-Motives and Algebraic Independence of Periods %J Documenta mathematica %D 2018 %P 815-838 %V 23 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/635/ %R 10.4171/dm/635 %F 10_4171_dm_635