[The laser, provisional treatment. A report on 117th annual meeting of the German Society for Dentistry, Oral Medicine and Orthodontics (DGZMK) of 30 September-2 October 1993 in Cologne]. [electronic resource]
- Schweizer Monatsschrift fur Zahnmedizin = Revue mensuelle suisse d'odonto-stomatologie = Rivista mensile svizzera di odontologia e stomatologia 1994
- 97-8, 126-7 p. digital