徐龙飞2019-09-232019-09-232016-05-172013-08-15http://hdl.handle.net/20.500.12424/102000chiWith permission of the license/copyright holder19世纪德国天主教社会训导理论冯·凯特勒19th centuryGermanCatholic Social Teaching Theoryvon Ketteler19世纪德国天主教社会训导理论之核心宗旨 [The Core Purpose of German Catholic Social Teaching Theory in 19th Century]Article