In order to tell whether a spelling is correct there needs to be a unified orthography However neither Saterland Frisian nor Alemannic have their own orthographies so there s no way to tell whether it s correct or not Most of the times both languages are spelled according to the German orthography except in the case of Alsatian an Alemannic variety which is sometimes spelled according to the French orthography since the Alsace is a part of France and French is the standard language there I also imagine that Saterland may occasionally be spelled according to the Dutch orthography or according to the orthographies of other Frisian varieties if there are any