APA (7th ed.) Citation

Szepietowski, A. The element distinctness problem on one-tape Turing machines. Information processing letters..

Chicago Style (17th ed.) Citation

Szepietowski, Andrzej. "The Element Distinctness Problem on One-tape Turing Machines." Information Processing Letters. .

MLA (9th ed.) Citation

Szepietowski, Andrzej. "The Element Distinctness Problem on One-tape Turing Machines." Information Processing Letters., .

Warning: These citations may not always be 100% accurate.