package{natbib}

% OBS!: plainnat style has conflict with C style multi-line comments /* */.
% OBS!: plainnat request zotero to export records as bibTex, not bibLatex.

\usepackage{natbib}

\cite               Aaa et al. (2002)

\citet              == \cite
\citet*             Aaa, Bbb and Ccc (2002)

\citep              (Aaa et al., 2002)
\citep*             (Aaa, Bbb and Ccc, 2002)

\citealt            Aaa et al. 2002
\citealp            Aaa et al., 2002

\citeauthor{..}     Aaa et al.
\citeauthor*{..}    Aaa, Bbb and Ccc

\citeyear{..}       2002
\citeyearpar{..}    (2002)

\citep[see][chap.~2]{..} (see Jones et al., 1990, chap. 2)

ref: possible author's web