Killing, Wilhelm: Wilhelmi Killing De determinante quodam disquisitiones mathematicae. In: . Jg.1889. 1889
 

Index lectionum in Lyceo Regio Hosiano Brunsbergensi per ... instituendarum → ... Per Aestatem ... Anni MDCCCLXXXIX. → Wilhelmi Killing De determinante quodam disquisitiones mathematicae