Access-based matrix
| All e-only, no archival rights | |||
| College Edition | Government | Corporate Edition | |
| Access to selected subject fields | Y | Y | |
| Access to all subject fields | (optional) | Y | Y |
| Additional backfiles available* | Y | Y | Y |
| Optional access to eBook products | Y | Y | |
| Full ScienceDirect functionality | Y | Y | Y |
| Usage reports | Y | Y | Y |
| Any start date | Y | Y | Y |
| Article in press availability | Y | Y | Y |
* Additional purchase necessary
