URL：https://www.researchgate.net/profile/Harri-Valkonen-2/publication/346585530/figure/fig4/AS:987488491417601@1612447011264/The-illustration-of-the-URL-URN-and-URI-26.png
掲載元：https://www.researchgate.net/figure/The-illustration-of-the-URL-URN-and-URI-26_fig4_346585530
