The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense).
The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
Bibliographia Phycologica Universalis
CLAVERO I OMS, Esther
2009
Diatomees d'ambients hipersalins costaners. Taxonomia, distribució i empremtes en el registre sedmentari
Barcelona, Institut D'Estudis Catalans
432 pp., 143 figs., 29 tables