Research: how to download references out of SFU

Happenedly I need to download references out of SFU campus. One right way I have to follow is: find the jounal where destination reference is from on SFU library web page; connect the web page of the journal by SFU link; go to the place to find your journal. This is pretty easy when you are sitting your office on campus since all offices have unlimited access to those journal web pages. If you are home, you have to follow the rountine above. One easy way I just found is: if the linke of your reference is: http://prola.aps.org/abstract/PRB/v15/i2/p964_1
without SFU access permission. What you can do is change the link above to:
http://prola.aps.org.proxy.lib.sfu.ca/abstract/PRB/v15/i2/p964_1
Note: I add a new part ".proxy.lib.sfu.ca" in red. Thus you could input your SFU account and password to download the reference if SFU library bought this journal.