1. Adler, H. E.: Mycoplasmosis In Animals. Advanc. Vet. Sci. 10, 205–244 (1965).
2. Adler, H. E.: And M. Shifrine: Nutrition,M. tabolism, And Pathogenicity Of Mycoplasmas. Ann. Rev. Microbiol. 14, 141–160 (1960).
3. Allen, W. H.: Acute pneumonitis. Ann. intern. Med. 10, 441–446 (1936).
4. Altucci, P.: PPLO (pleuropneumonia like organisms): aspetti microbiologici e clinici, Parte I. Boll. Dell’Itituto Sieroterapico Milanese 42, 588–607 (1963).
5. Altucci, P.: PPLO (pleuropneumonia like organisms): aspetti microbiologic e clinici, Parte II. Boll. Dell ’Istituto Sieroterapico Milanese 43, 63–76 (1964).