1. The role and performance of minute focal spots in roentgenology with special reference to magnification;Milne;CRC Crit Rev in Radiol Sci,1971
2. Image resolution in dental and maxillofacial radiography with the conventional and “free focus” imaging concepts;Jensen;Oral Surg Oral Med Oral Pathol,1981
3. Zur Dosis bei Panorama-Röntgenaufnahmen;Sonnabend;Dtsch Zahnärztl Z,1972
4. Vergleichende Untersuchungen von Panoramaröntgenaufnahmen (Status-X) und intraoralen Röntgenaufnahmen;Diedrich;Dtsch Zahnärztl Z,1976
5. Determination of radiation geometry and radiation doses during radiography with an intraoral x-ray tube (Philips Stat Oralix);Blomgren;Dentomaxillofac Radiol,1978