ポリウレタン (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "ポリウレタン" in Japanese language version.

refsWebsite
Global rank Japanese rank
2nd place
6th place
800th place
2,213th place
low place
1,933rd place
1st place
1st place
low place
1,357th place

doi.org

  • Bayer, Otto (1947). “Das Di-Isocyanat-Polyadditionsverfahren (Polyurethane) [The diisocyanate polyaddition process (Polyurethanes)]”. Angewandte Chemie 59: 257–272. doi:10.1002/ange.19470590901. 

espacenet.com

worldwide.espacenet.com

  • DE 728981, IG Farben, published 1937 

kokusen.go.jp

sozogaku.com

web.archive.org