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}

}