Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Matsumoto Takashi and Nakanishi Kaoru and Asai Kei and Sadaie Yoshito,Transcriptional analysis of the ylaABCD operon of Bacillus subtilis encoding a sigma factor of extracytoplasmic function family,Genes & Genetic Systems,13417568,The Genetics Society of Japan,2005,80,6,385-393,https://cir.nii.ac.jp/crid/1390282680450190080,https://doi.org/10.1266/ggs.80.385