Name | Info | Provider | Link |
---|---|---|---|
subscription/membership/fee required | Ingenta plc | https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=4&issue=2&spage=237&aulast=Birkeland | |
subscription/membership/fee required | Spandidos Publications | https://www.spandidos-publications.com/mmr/4/2/237 |