1. Baumeister, J., German Patent DE, 1990, 4018360
2. Baumeister, J., US Patent, 1992, 5 151 246
3. Baumeister, J., European Patent EP 0460392A1, 1996
4. Banhart, J., Baumeister, J., Weber, M., In Proceedings of the European Conferenc on Advanced Materials (PM '95). Birmingham, 1995, p. 201
5. Baumeister, J., Banhart, J., Weber, M., In Proceedings of the International Conference on Materials by Powder Technology. Dresden, 1993, p. 501