Dom Firmin Le Ver : a Carthusian lexicographer ; The Carthusian Order from its foundation to the present day ; Carthusian spirituality ; Guillelmi a Sancto Theodorico Opera Omnia Pars III : Opera Didactica et Spiritualia - Hogg, James 1931-2018 (Analecta Cartusiana (Universität Salzburg), 2005)