In different contexts, Kelsen would indicate his preferences in different ways, with some neo-Kantians asserting that late in life Kelsen would largely abide by the symbolic reading of the term when used in the neo-Kantian context, and as he has documented. The neo-Kantian reading of Kelsen can further be subdivided into three subgroups, with each representing their own preferred reading of the meaning of the Grundnorm, which were identifiable as (a) the Marburg neo-Kantians, (b) the Baden neo-Kantians, and (c) his own Kelsenian reading of the neo-Kantian school (during his "analytico-linguistic" phase circa 1911–1915) with which his writings on this subject are often associated.