APA
Hoffmann M. J., . (1994). Silicon Nitride 93. : Trans Tech Publication.
Chicago
Hoffmann Michael J, . 1994. Silicon Nitride 93. : Trans Tech Publication.
Harvard
Hoffmann M. J., . (1994). Silicon Nitride 93. : Trans Tech Publication.
MLA
Hoffmann Michael J, . Silicon Nitride 93. : Trans Tech Publication. 1994.