To cite the original method in the 'nbc4va' package use (BioMed Central reference style):
Miasnikof P, Giannakeas V, Gomes M, Aleksandrowicz L, Shestopaloff AY, Alam D, Tollman S, Samarikhalaj A, Jha P (2015).“Naive Bayes classifiers for verbal autopsies: comparison to physician-based classification for 21,000 child and adult deaths.”BMC Medicine,13(286).https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-015-0521-2.
Corresponding BibTeX entry:
@Article{, title = {Naive Bayes classifiers for verbal autopsies: comparison to physician-based classification for 21,000 child and adult deaths}, author = {Pierre Miasnikof and Vasily Giannakeas and Mireille Gomes and Lukasz Aleksandrowicz and Alexander Y. Shestopaloff and Dewan Alam and Stephen Tollman and Akram Samarikhalaj and Prabhat Jha}, journal = {BMC Medicine}, year = {2015}, volume = {13}, number = {286}, url = {https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-015-0521-2}, }