@article{piqueira_2004,  title={Bits and q-bits as versatility measures},  volume={76},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652004000200035},  DOI={10.1590/S0001-37652004000200035},  number={2},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={Piqueira, José R.C.},  year={2004},  month={Jun},  pages={425–428} }