Andrzej Szepietowski. On space functions constructed by two-dimensional turing machines. Inf. Sci., 60(1-2):177-183, 1992. [doi]
@article{Szepietowski92b,
title = {On space functions constructed by two-dimensional turing machines},
author = {Andrzej Szepietowski},
year = {1992},
doi = {10.1016/0020-0255(92)90010-6},
url = {http://dx.doi.org/10.1016/0020-0255(92)90010-6},
researchr = {https://researchr.org/publication/Szepietowski92b},
cites = {0},
citedby = {0},
journal = {Inf. Sci.},
volume = {60},
number = {1-2},
pages = {177-183},
}