Confession studies and ecumenical theology
QA general confession studies and controversial theology
QB Orthodox church
| 1-99 | East church in general |
| 101-200 | Greek-Orthodox Church |
| 201-399 | Russian-Orthodox Church |
| 400-499 | Finish-Orthodox Church |
| 500-600 | Serbian-Orthodox Church |
| 601-700 | Romanian-Orthodox Church |
| 701-800 | Bulgarian-Orthodox Church |
QC Catholicism (following Greinacher)
| 1-300 | fundamental theology, dogmatic, moral theology, practical theology |
| 301-600 | moral theology: social sciences and economics (papal circular, encyclicals) |
| 601-900 | Vaticanum II (overviews, i.a.) |
1. fundamental theology
| 1-100 | complete overviews |
| 101-200 | complete writings |
| 201-300 | collected volumes |
| 301-700 | appendices: Catholicism |
| | 301-500 | substance (origin, idea, occurrence) |
| | 501-700 | theology (concept, thematic, studies) |
2. Dogmatic
| 1-100 | complete overviews |
| 201-300 | complete writings (handbooks) |
| 201-300 | collected volumes |
3. Moral theology
| 1-100 | complete overviews |
| 101-200 | complete writings |
| 201-300 | collected volumes (handbooks) |
| 301 ff | social sciences and economics |
4. practical theology
| 1-100 | complete overviews |
| 101-200 | complete writings |
| 201-300 | collected volumes |
1. fundamental theology
| 1-200 | in a closer sense |
| 201-400 | religious-philosophical |
| 401-600 | religious-historical (cf. religious studies, mission studies) |
| 601-800 | biblical (scripture, tradition, magisterium) |
2. dogmatic
| 1-50 | doctrine of trinity |
| 51-150 | Christology |
| 151-200 | anthropology |
| 201-250 | pneumatology |
| 251-300 | eschatology |
| 301-500 | ecclesiology |
| 501-700 | Mariology |
| 701-1200 | doctrine of sacraments |
| | 701-750 | general |
| | 751-850 | Eucharist |
| | 851-900 | baptism |
| | 901-950 | confirmation |
| | 951-1000 | penance, forgiveness of sins |
| | 1001-1050 | last anointment |
| | 1051-1150 | holy orders: incl. apostolate of pope, of bishop, and of priests: laity |
| | 1151-1200 | marriage |
3. moral theology
| 1-200 | scholastic-philosophical ethics, biblical ascetics |
| 201-400 | social sciences and economics |
4. practical theology
| 1-200 | liturgy (communion, cult, symbolic) |
| 201-400 | pastoral theology |
| | 201-300 | history of pietism, religious-biblical ascetics, mystical theology |
| | 301-350 | monastery |
| | 351-400 | the saints |
| 401-600 | appendices: Catholic Church - organization |
5. miscellaneous
QD Protestant churches
| 1-200 | Lutheranism |
| 201-400 | Calvinism |
| 1-200 | Lutheranism |
| 201-400 | Calvinism |
| 1-200 | Protestantism in general |
| | 1-150 | Lutheranism |
| | 151-200 | Calvinism |
| 201-350 | Protestant church in Europe |
| 351-400 | American Lutheranism |
| 401-600 | Protestant church in Germany |
| 1-200 | to the Lutheran theology |
| 201-400 | to the reformed theology |
| 401 ff. | miscellaneous |
QE Anglican churches
QF other Protestant denominations
QG young churches
QH religious special groups
QJ relations between individual confessions
| 1-29 | general (controversial-theological problematic, ecumenical problematic, etc.) |
| 31-100 | complete writings, collected volumes |
b-h individual overviews
b 1-100 East church - Rom. Church
c 101-200 East church - Prot. Church
d 1-500 Rom. Church - Prot. Church
| 1-100 | Catholicism - Protestantism |
| 101-200 | Catholic reformation, reform council, reintegration |
| 201-250 | the holy one |
| 251-300 | church |
| 301-350 | papacy |
| 351-400 | Mariology |
| 401-450 | doctrine of justification |
| 451-500 | miscellaneous |
e 1-100 Lutheran church - Reformed church - unions
f 1-100 Anglican church - old Catholicism - Prot. churches
g Afro-American churches
h Christian Peace Conference
QK ecumenical movement
| | 1-100 | general |
| | 101-300 | complete overviews, collected volumes |
| 301-800 | individual researches |
| | 301-350 | confessions |
| | 351-450 | Christology, pneumatology |
| | 451-550 | ecclesiology |
| | 551-600 | sacraments, offices |
| | 601-700 | mass, evangelization, laity issue |
| | 701-800 | social themes, ecumenical dialogues |