Links
[1] https://edesiderata.crl.edu/providers/portico
[2] http://www.portico.org/digital-preservation/
[3] https://edesiderata.crl.edu/providers/gale
[4] https://edesiderata.crl.edu/providers/adam-matthew-digital
[5] https://edesiderata.crl.edu/providers/ebsco-information-services
[6] http://www.crl.edu/node/11952
[7] http://www.crl.edu/node/6572