\begin
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% lmd style needs information bellow ======================================
\def\lmdauthor{F. Author\sep S. Author}%Example:% F. Author\sep S. Author \and Th. Author
\def\lmdtitle{Title of the article}%Example:% Title of Article
\def\lmdtitleLT{Title of the article in Lithuanian}%Example:% Straipsnio pavadinimas
\def\lmdrunauthor{F. Author\sep S. Author}%Example:% F. Author\sep S. Author \and Th. Author
\def\lmdruntitle{Runtitle of Article}%Example:% Runtitle of Article
\def\lmdkeywords{EN...; ...}
\def\lmdkeywordsLT{LT...; ...}
\def\lmdams{..., ...}% 34B24, 05C10
\def\lmdreci{September 1, 2021}
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\def\lmdabstractLT{Abstract in Lithuanian}
\begin{filecontents*}{ljs.00}
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\addcontentsline{toc}{section}{...}%Example:% F. Author, S. Author, Th. Author
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\newpage\
\index{...}\index{...}\index{...}%\index{Author F.}\index{Author S.}\index{Author Th.}
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% ************* Author's references ******************%
\begin{filecontents*}{x.bib}
@preamble{ "\newcommand{\nosort}[1]{}" }
@ARTICLE{2019NA24n5,
author = "K. Bingelė and A. Bankauskienė and A. Štikonas" ,
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 = "Diferencialinių lygčių kraštiniai uždaviniai su nelokaliosiomis sąlygomis",
publisher = "Mokslo aidai",
year = "2007",
address= "Vilnius",
}
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% ************* end Author's references ******************%
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% ************* Author's definitions ******************
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% ************* end Author's definitions ******************%
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%
\begin{topmatter}
%
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\vskip 0.2cm
\institution{$^\mathrm{a}$Institute of Applied Mathematics, Vilnius University}
\address{\ \,Naugarduko 24, LT-03225 Vilnius, Lithuania}
\institution{$^\mathrm{b}$Faculty of Mathematics and Informatics, Vilnius University}
\address{\ \,Naugarduko 24, LT-03225 Vilnius, Lithuania}
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\begin{abstract}\lmdabstract\end{abstract}%add abstract at beginning of Your file
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%
% ************* Text entry area ******************%
\section*{Introduction}
\section{First section}\label{s:1}
%spell_to this point %********** End of text entry *****************
%\begin{thebibliography}{9}
%
\begin{theorem}\label{thm:1}
Example of citation \cite{2007_Sapagovas_book} \cite{2019NA24n5}
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%
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% ----------------------------------------------------------
\Summary
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