Development of a fast and reliable diagnostic method for American foulbrood disease (Paenibacillus larvae subsp. larvae) using a 16S rRNA gene based PCR Wim Dobbelaere, Dirk C. de Graaf and Johan E. PeetersApidologie, 32 4 (2001) 363-370DOI: https://doi.org/10.1051/apido:2001136