the MWE will show you the problem I am faced with. I want to remove the comma after the second author so that I obtain: "author1, author2 and author3 (year)". With the settings in the MWE, I obtain: "author1, author2, and author3 (year)".
\documentclass[
twoside,openright,titlepage,numbers=noenddot,headinclude,
footinclude=true,cleardoublepage=empty,
headsepline,
dottedtoc,
BCOR=5mm,paper=a4,fontsize=11pt,
ngerman,american,
]{scrreprt}
\PassOptionsToPackage{utf8}{inputenc}
\usepackage{inputenc}
\usepackage[american]{babel}
\PassOptionsToPackage{%
backend=biber,
isbn = false,
doi = false,
language=auto,
style=authoryear-comp,
sorting=nyt,
maxbibnames=1,
natbib=true
}{biblatex}
\usepackage{biblatex}
\addbibresource{citation-292640248.bib}
\usepackage{classicthesis}
\begin{document}
When citing with citet one obtains for example:
\citet{Antoniadis.1992}.
\end{document}
The corresponding bib.-file reads:
@article{Antoniadis.1992,
author = {Antoniadis, D. and Mantzavinos, D. and Stamatoudis, M.},
year = {1992},
month = {03},
pages = {161-165},
title = {Effect of chamber volume an diameter on bubble formation at plate
orifices},
volume = {70}
}