@ARTICLE{Zyczkowski2008,
title = {{Q}uartic quantum theory: an extension of the standard quantum mechanics},
url = {http://stacks.iop.org/1751-8121/41/i=35/a=355302},
timestamp = {2013.10.28},
journal = {Journal of Physics A: Mathematical and Theoretical},
author = {Karol \.Zyczkowski},
volume = {41},
year = {2008},
owner = {lacek},
pages = {355302},
number = {35}
}