1991

Mayr, Herbert and Heilmann, Werner and Bäuml, Englbert and Vorbrüggen, Helmut (1991): Synthesis of 2,2,5,5-Tetramethylcyclopentanecarboxylic Acid. A Building Block of an Amino Acid Based Sweetener. In: Chemische Berichte, Vol. 124, No. 1: pp. 203-206

1987

Heilmann, Werner and Mayr, Herbert and Vorbrüggen, Helmut (1987): Synthese von 2,2,5,5-Tetramethylcyclopentancarbonsäure: Baustein eines neuen Süßstoffs. In: Focus MUL, Vol. 4, No. 2: pp. 94-97