Sanskrit dictionaries of Buddhacarita, Bodhicaryāvatāra, Rāmāyaṇa, Sāṃkhyakārikā, Sāṃkhyakārikābhāṣya, Sāṃkhyatattvakaumudī
The dictionary of the Sanskrit texts Buddhacarita, the Bodhicaryāvatāra, the Rāmāyaṇa and its verbal forms, and the cumulative dictionary of the Sāṃkhyakārikā, with (parts of) two commentaries, the Sāṃkhyakārikābhāṣya and the Sāṃkhyatattvakaumudī, all in PDF, are available here at the German site Rasavidyā, the first systematic study of the material culture of medieval Indian alchemy.