@incollection{Sommermann2018, author = {Karl-Peter Sommermann}, title = {The Sources of Fundamental Rights}, series = {Fundamental Rights in Europe and North America, Part A, Germany}, editor = {Albrecht Weber}, publisher = {Kluwer Law International}, address = {The Hague}, isbn = {90-411-1531-5}, pages = {13 -- 18}, year = {2018}, abstract = {.}, language = {en} }