/en/fs2/async/vector/bsb00049314.html?PER_ent=%7BJohann+Wilhelm%7D%7BDr.+Friedrich%7D&LOC_ent=%7BRhein%7D%7BAachen%7D%7BHeidelberg%7D%7BK%C3%B6ln%7D&mode=simple
/en/fs2/async/PER_ent/bsb00049314.html?PER_ent=%7BJohann+Wilhelm%7D%7BDr.+Friedrich%7D&LOC_ent=%7BRhein%7D%7BAachen%7D%7BHeidelberg%7D%7BK%C3%B6ln%7D&mode=simple
/en/fs2/async/LOC_ent/bsb00049314.html?PER_ent=%7BJohann+Wilhelm%7D%7BDr.+Friedrich%7D&LOC_ent=%7BRhein%7D%7BAachen%7D%7BHeidelberg%7D%7BK%C3%B6ln%7D&mode=simple
/en/fs2/async/mlt/bsb00049314.html?PER_ent=%7BJohann+Wilhelm%7D%7BDr.+Friedrich%7D&LOC_ent=%7BRhein%7D%7BAachen%7D%7BHeidelberg%7D%7BK%C3%B6ln%7D&mode=simple