# Elsevier cas-sc document class: cannot print bibliography

\documentclass[a4paper,fleqn]{cas-sc}

\begin{document}
\begin{thebibliography}{1}
\bibitem{DLC_DR}
Stenner, Karen, Elisha R. Frederiks, Elizabeth V. Hobman, and Stephanie Cook. "Willingness to participate in direct load control: The role of consumer distrust." Applied energy 189 (2017): 76-88.
\bibitem{Price_DR}
Takano, Hirotaka, Asuka Kudo, Hisao Taoka, and Atsumi Ohara. "A basic study on incentive pricing for demand response programs based on social welfare maximization." Journal of International Council on Electrical Engineering 8, no. 1 (2018): 136-144.
\end{thebibliography}
\end{document}

• Probably related: tex.stackexchange.com/a/488481/134144 – leandriis Jun 8 '19 at 9:55
• Indeed the document compiles when you add \usepackage[numbers]{natbib} to the preamble. But the error should not appear, please report this error to the developers. – moewe Jun 8 '19 at 9:57
• is this not answered by the comment on your previous question tex.stackexchange.com/questions/488234/… – David Carlisle Jun 8 '19 at 10:16
• Please don't just dump code on readers. It would be really helpful if you stated specifically which errors you encounter, rather than just state the outcome of these errors ("cannot print bibliography") in the title. – Mico Jun 8 '19 at 14:11

You need to load a citation management package with suitable options, e.g.,

\usepackage[numbers]{natbib}


A full MWE:

Note that I would use smart rather than dumb (") quotes around the titles. I would also use en-dashes rather than simple dashes to indicate numeric ranges (see the page ranges below).

\documentclass[a4paper,fleqn]{cas-sc}
\usepackage[numbers]{natbib} % <-- new
\begin{document}

\noindent
\cite{DLC_DR,Price_DR}

\begin{thebibliography}{1}

\bibitem{DLC_DR}
Stenner, Karen, Elisha R. Frederiks, Elizabeth V. Hobman, and
Stephanie Cook. Willingness to participate in direct load control:
The role of consumer distrust.'' Applied Energy 189 (2017): 76--88.

\bibitem{Price_DR}
Takano, Hirotaka, Asuka Kudo, Hisao Taoka, and Atsumi Ohara. A basic
study on incentive pricing for demand response programs based on social
welfare maximization.'' Journal of International Council on Electrical
Engineering 8, no.~1 (2018): 136--144.

\end{thebibliography}
\end{document}