TransliterationPypin, A.N. Religious Movements under Alexander I. Preface and Notes by N.K. Piksanov. 1916. In Russian (ask us if in doubt)
In EnglishPypin, A.N. Religioznye dvizheniya pri Aleksandre I. Predislovie i primechaniya N.K. Piksanova. 1916.
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