Practical Threshold RSA Signatures without a Trusted Dealer. - Ivan Damgård; Maciej Koprowski (EUROCRYPT, 2001)

Generic Lower Bounds for Root Extraction and Signature Schemes in General Groups. - Ivan Damgård; Maciej Koprowski (IACR Cryptol. ePrint Arch., 2002)

Efficient Blind Signatures Without Random Oracles. - Jan Camenisch; Maciej Koprowski; Bogdan Warinschi (SCN, 2004)

Fine-grained forward-secure signature schemes without random oracles. - Jan Camenisch; Maciej Koprowski (Discret. Appl. Math., 2006)