1. The relationship of heifer production with production in later lactations and longevity;Barker;Milk Brd. J.,1967
2. Regression and correlation among consecutive and non-consecutive lactation records;Barr;J. Dairy Sci.,1963
3. Möglichkeiten und Erfordernisse zur Erhöhung des Eiweißgehaltes in der Milch, dargestellt am Beispiel der Herden des Instituts für Tierzucht und Tierhaltung Clausberg;Breitenstein;Archiv Tierzucht,1965
4. Estimates of genetic parameters for milk constituents and yields;Butcher;J. Dairy Sci.,1967
5. Heritabilities and repeatabilities of milk and milkfast production by lactations;Butcher;J. Dairy Sci.,1968