Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHIRAKURA Masaaki,Effects of Surface Roughness of Impeller Channel on Volute-pump Performance,Journal of the Society of Mechanical Engineers,00214728,The Japan Society of Mechanical Engineers,1959,62,485,890-899,https://cir.nii.ac.jp/crid/1390282680891048064,https://doi.org/10.1299/jsmemag.62.485_890