1. Akabori, S. 1932. Amino acids and their derivatives. J. Chem. Soc. Jpn 52, 606.
2. Bartlett, S. 1945. Proceedings of Cocoa Research Conference, HMSO, London.
3. Bauermeister, P. 1981. Cocoa liquor roasting. Mani: Conf. Oct.
4. Bradford, L., and Harris, T. L., British Patent 1, 032, 465.
5. Boller, G. 1980. Technological aspects of liquor grinding. Manf. Conf. May. Carle and Montanan, Milan. Cocoa presses, PDAT/I process.