\begin
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\def\firstpage{1}
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\def\lmdreci{2023 liepos 1}
\def\nr{xx}
% lmd style needs information bellow ======================================
\def\lmdauthor{...}%Example:% P. Autorius, A. Autorius, T. Autorius
\def\lmdtitleEN{Pavadinimas EN}%Example:% Pavadinimas EN
\def\lmdtitle{LT...}%Example:% Straipsnio pavadinimas LT
\def\lmdrunauthor{P. Autorius1, A. Autorius2}%Example:% P. Autorius, A. Autorius, T. Autorius
\def\lmdruntitle{LT...}%Example:% trumpas pavadinimas LT
\def\lmdkeywords{EN...;...}
\def\lmdkeywordsLT{LT...;...}
\def\lmdams{..., ...}
\def\lmdabstract{Santrauka angliškai}
\def\lmdabstractLT{Tai yra santrauka.}
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\c@page=1%=\firstpage
\addcontentsline{toc}{section}{...}%Example:% P. Autorius, A. Autorius, T. Autorius
\addcontentsline{toc}{subsection}{...}%Example:% Pavadinimas
\newpage\
\index{...}\index{...}\index{...}%\index{Autorius P.}\index{Autorius A.}\index{Autorius T.}
\end{filecontents*}
% ************* Author's references ******************%
\begin{filecontents*}{x.bib}
@preamble{ "\newcommand{\nosort}[1]{}" }
@ARTICLE{2019NA24n5,
author = "K. Bingel{\.{e}} and A. Bankauskien{\.{e}} and A. {\v{S}}tikonas" ,
title = "Spectrum Curves for a discrete {S}turm--{L}iouville problem with one integral boundary condition",
journal = "Nonlinear Anal. Model. Control",
year = 2019,
volume = 24,
number = 5,
pages = "755--774",
doi ={10.15388/NA.2019.5.5},
}
@BOOK{2007_Sapagovas_book,
author = "M. Sapagovas",
title = "Diferencialini{\k{u}} lyg{\v{c}}i{\k{u}} kra{\v{s}}tiniai u{\v{z}}daviniai su nelokaliosiomis s{\k{a}}lygomis",
publisher = "Mokslo aidai",
year = "2007",
address= "Vilnius",
}
\end{filecontents*}
% ************* end Author's references ******************%
\documentclass{ljsLT}%lmdLT,lmdEN
\LMDJCLS
\makeatletter
\spnewtheorem*{west}{Test the West}{\bfseries}{\itshape}
\@ifundefined{BibTeX}{%
\def\BibTeX{\mbox{{\sc Bib}\TeX}}}{}
\makeatother
% ************* Author's definitions ******************%************ Author's definitions ******************%
\let\geq\geqslant
\let\leq\leqslant
% ************* end Author's definitions ******************%
\begin{document}
\bibliographystyle{ljs}
%
\begin{topmatter}
%
%\thankstext{t1}{Title thanks}
%add runauthor at beginning of Your file
%add runtitle at beginning of Your file
%add title at beginning of Your file
%add add all authors at beginning of Your file
\title{Mokslinio straipsnio pavadinimas}%Example:% \lmdtitle\thanks{Projektas}
\author{Pirmas Autorius1$^\mathrm{a}$\ID{orcid},Antras Autorius2$^\mathrm{b}$}%Example:% Pirmas Autorius$^\mathrm{a}$\ID{0000-0000-0000-00x1}, Antras Autorius$^\mathrm{b}$\ID{}, Trečias Autorius$^\mathrm{c}$\ID{}
\vskip 0.2cm
\institution{$^\mathrm{a}$Taikomosios matematikos institutas, Vilniaus universitetas}
\address{\ \,Naugarduko g. 24, LT-03225 Vilnius, Lietuva}
\institution{$^\mathrm{b}$Matematikos ir informatikos fakultetas, Vilniaus universitetas}
\address{\ \,Naugarduko g. 24, LT-03225 Vilnius, Lietuva}
\email{aut1@mail.com; aut2@mail.com}%
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%spell_from this point
\begin{abstract}\lmdabstractLT\end{abstract}%add abstract at beginning of Your file
\Keywords %add keywords at beginning of Your file
\AMSwords %add keywords at beginning of Your file
%
% ************* Text entry area ******************%
\section*{Įvadas}
\section{Pirmas skyrelis}\label{s:1}
%spell_to this point %********** End of text entry *****************
%\begin{thebibliography}{9}
%
\begin{theorem}\label{thm:1}
Citavimo pavyzdys.
\cite{2007_Sapagovas_book} \cite{2019NA24n5}
\end{theorem}
%spell_to this point %********** End of text entry *****************
%\begin{thebibliography}{9}
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\vspace{-3pt}
\bibliography{x}
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% ----------------------------------------------------------
\Summary
\end{document}