Which preposition to use with systematization

of Occurrences 5%

This question arose in the course of the legislative work on the systematization of the fundamental laws of Finland.

from Occurrences 1%

But simultaneously with its second edition (1878) there appeared two monographs, which constituted the embryo of the new school, supplementing the anthropological studies of Lombroso with conclusions and systematizations from the point of view of sociology and law.

Which preposition to use with  systematization