▁Doctor ▁of ▁Let ters ▁in ▁ 1 9 7 2 , ▁he ▁was ▁a ▁lect urer ▁and ▁then ▁a ▁professor ▁at ▁the ▁University ▁of ▁Str as bourg ▁from ▁ 1 9 7 4 . ▁ ▁A ▁lect urer ▁in ▁the ▁history ▁of ▁Christian ity ▁at ▁the ▁ ▁between ▁ 1 9 7 2 ▁and ▁ 1 9 9 1 , ▁R app ▁was ▁an ▁associate ▁professor ▁at ▁the ▁university ▁of ▁Ne uch ât el ▁and ▁a ▁visit ing ▁scholar ▁at ▁several ▁univers ities ▁in ▁North ▁America ▁and ▁Europe . ▁ ▁R app ▁was ▁a ▁member ▁of ▁the ▁Cons ult ative ▁Committee ▁of ▁Univers ities , ▁the ▁High er ▁Council ▁of ▁University ▁Bod ies , ▁the ▁National ▁Committee ▁of ▁the ▁Centre ▁national ▁de ▁la ▁recherche ▁scient ifique , ▁the ▁Scient ific ▁Council ▁and ▁the ▁Board ▁of ▁Direct ors ▁of ▁the ▁É cole ▁nationale ▁des ▁chart es ▁and ▁the ▁. ▁He ▁was ▁also ▁a ▁member ▁of ▁the ▁, ▁the ▁Ac adémie ▁des ▁March es ▁de ▁l ’ Est ▁and ▁the ▁Gött ingen ▁Academy ▁of ▁Sciences ▁and ▁Human ities . ▁ ▁A ▁member ▁of ▁the ▁editor ial ▁board ▁of ▁the ▁review ▁Archiv ▁für ▁Reform ations geschichte ▁and ▁a ▁contrib utor ▁to ▁the ▁Encyclop édie ▁de ▁l ' Al s ace ▁and ▁the ▁, ▁R app ▁was ▁elected ▁in ▁ 1 9 9 3 ▁as ▁a ▁member ▁of ▁the ▁Ac adémie ▁des ▁ins cri ptions ▁et ▁b elles - let tres ▁in ▁the ▁seat ▁of ▁Em manuel ▁Lar o che . ▁ ▁R app ▁died ▁on ▁