1. Structural differences in the hinge region of human gamma A myeloma proteins of different subclasses;Abel;Nature, New Biology,1971
2. Progress in Immunology,1971
3. Amino acid sequences of two mouse immunoglobulin lambda chains;Appella,1971
4. Two types of lambda polypeptide chains in human immunoglobulins based on amino acid substitution at position 190;Appella,1967
5. Die Primärstruktur einer monoklonalen Immunglobulin L-Kette der Subgruppe IV vom λ-Typ (Bence-Jones-Protein Bau): Untergruppen innerhalb der Subgruppen;Baczko;Hoppe-Seyler's Zeitschrift für physiologische Chemie,1970