A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
Takehito Maruyama, Nobuhiko Kuroki, Kenzo Konishi. "The Fluorescent Brightening Agents of the Bis-Benzoxazolyl-ethylene Series Containing Sulfonamide Group." The Journal of the Society of Chemical Industry Japan 66.1 (1963) 69-73