I'm having troubles creating my own references, as it gets desconfigured in the bibliography.
Here is how it have been done in the references.bib file:
@unpublished{apostila_cristiano,
title={TRIZ},
author={Ferreira, Cristiano V. and Forcellini, Fernando A.},
year={2000},
note={Apostila constituinte do estudo da Tese de Doutorado}
}
And here is my main.tex file
\documentclass[bibliography=totoc]{scrreprt}
\usepackage[utf8]{inputenc}
\usepackage[backend=biber,style=authoryear,natbib=true]{biblatex}
\addbibresource{references.bib}
\begin{document}
asdf
\nocite{*}
\printbibliography[heading=bibintoc]
\end{document}
In the reference there are two autors, Cristiano V. Ferreira and Fernando A. Forcellini. What happens is, the bibliography is not ordering right the second authors name.
Instead of generating
Ferreira, Cristiano V e Forcellini, Fernando A (2000). “TRIZ”. Apostila
constituinte do estudo da Tese de Doutorado.
the copilation gives me:
Ferreira, Cristiano V e Fernando A Forcellini (2000). “TRIZ”. Apostila
constituinte do estudo da Tese de Doutorado.
Could you help me solve this problem?

author={Ferreira, Cristiano V. and Forcellini, Fernando A.},. BibTeX makes no assumptions as to whether the single uppercase lettersVandAare abbreviations (of Victor and Albert, possibly) or complete given names that just happen to consist of a single letter... – Mico Jun 06 '18 at 15:47natbib,cite,jurabib,biblatex, ...) you are using as well as on the style (the argument of\bibliographystylefor BibTeX-based styles or the value of thestyleoption forbiblatex). Please tell us how you produce your bibliography in an MWE/MWEB. – moewe Jun 06 '18 at 15:48