Klaus Meer. On Ladner's result for a class of real machines with restricted use of constants. Inf. Comput., 210:13-20, 2012. [doi]
@article{Meer12, title = {On Ladner's result for a class of real machines with restricted use of constants}, author = {Klaus Meer}, year = {2012}, doi = {10.1016/j.ic.2011.11.001}, url = {http://dx.doi.org/10.1016/j.ic.2011.11.001}, researchr = {https://researchr.org/publication/Meer12}, cites = {0}, citedby = {0}, journal = {Inf. Comput.}, volume = {210}, pages = {13-20}, }