Simon Perreault. xCard: vCard XML Representation. RFC, 6351:1-22, August 2011. [doi]
@article{rfc6351, title = {xCard: vCard XML Representation}, author = {Simon Perreault}, year = {2011}, month = {August}, doi = {10.17487/RFC6351}, url = {https://doi.org/10.17487/RFC6351}, researchr = {https://researchr.org/publication/rfc6351}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {6351}, pages = {1-22}, }