Schnorr, C. P. (1971). "A unified approach to the definition of a random sequence". Mathematical Systems Theory. 5 (3): 246–258. doi:10.1007/bf01694181. S2CID8931514.
Schnorr, C. P. (1971). "A unified approach to the definition of a random sequence". Mathematical Systems Theory. 5 (3): 246–258. doi:10.1007/bf01694181. S2CID8931514.