diff --git a/app/doc/utt.texinfo b/app/doc/utt.texinfo
index be6f117..04bb6a8 100644
--- a/app/doc/utt.texinfo
+++ b/app/doc/utt.texinfo
@@ -1747,15 +1747,77 @@ lzop -cd corpus.grp.lzo | grp -e @var{EXPR} | unfla | ser -e @var{EXPR}
 @item @strong{Required annotation:}     @tab tok, sen, lem -1
 @end multitable
 
-[TODO]
+@subsection Description
+@code{mar} is a perl script, which matches given pattern on the utt-formated text
+and tags matching parts with any number of user-defined tags.
+
+@subsection Command line options
+@table @code
+@parhelp
+@parversion
+
+@item @b{@minus{}@minus{}pattern=@var{pattern}, @minus{}e @var{pattern}}
+The search pattern.
+@item @b{@minus{}@minus{}action=@var{action}, @minus{}a @var{action} [p] [s] [P]}
+Perform only indicated actions. Where:
+@multitable {aaaaaaaaaa} {aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}
+@item @code{p}   @tab preprocess
+@item @code{s}   @tab search
+@item @code{P}   @tab postprocess
+@end multitable
+default: psP
+
+@item @b{@minus{}@minus{}command}
+print generated sed command, then exit
+
+@item @b{@minus{}@minus{}help, @minus{}h}
+print help, then exit
+
+@item @b{@minus{}@minus{}version, @minus{}v}
+print version, then exit
+@end table
+@subsection Tokens in pattern
+@code{mar} pattern is based on @code{ser} patterns(see @pxref{ser pattern}). @code{mar} pattern is a @code{ser} pattern,
+in which you can add any number of matching tags, which will be printed in exacly the place, where
+they were placed in the pattern. A valid token starts with @@ which follows any number of alphanumeric
+characters. For example valid match tokens are: @@STARTMATCH @@ENDMATCH
+
+Matching tokens can be placed between, before or after any of @code{ser} pattern terms. They don't have
+to be paritied. There can be any number of them in the pattern (zero or more). They don't have to be unique.
+They can be placed one after another. For example:
+
+@multitable {aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa} {aaaaaaaaaaaaaaaaaaaaaaaaaa}
+@item @code{@@BOM lexeme(pomoc)}  @tab place tag @b{BOM} before any form of the lexeme 'pomoc'
+@item @code{@@MATCH lexeme(pomoc) @@MATCH}      @tab place tag @b{MATCH} before and after any form of the lexeme 'pomoc'
+@item @code{cat(<ADJ>) @@MATCH lexeme(pomoc) @@MATCH}      @tab place tag @b{MATCH} before and after any form of the lexeme 'pomoc' which is  followef by adjective
+@item @code{cat(<ADJ>) @@TAG @@BOM lexeme(pomoc) @@EOM}      @tab place tags @b{TAG} and @b{BOM}  before any form of the lexeme 'pomoc' which is  followed by adjective and tag @b{EOM} after it
+@end multitable
+
+(see mar's help 'mar -h' for some more information)
+
+@subsection How mar works
+@code{mar} translates given @code{ser} pattern with @code{m4} macroprocessor to regular expression. Then it changes it into @code{sed} command script, which is then executed.
+
+You can see translated sed script by using the @code{@minus{}@minus{}command} option.
+@subsection Limitations
+The complexity of computations performed by @code{mar} increases linearly with the number of placed tokens. So it is highly recommended not to place too much tokens.
+@subsection Requirements
+In order to run @code{mar}, the following programs must be installed in the system:
+
+@itemize
+
+@item @command{m4}
+@item @command{grep}
+@item @command{sed}
+
+@end itemize
+
 
-(see mar's help 'mar -h' for some information)
 
 @c ---------------------------------------------------------------------
 @c KOT
 @c ---------------------------------------------------------------------
 
-
 @page
 @node kot
 @section kot - untokenizer
diff --git a/app/src/mar/mar b/app/src/mar/mar
index 14a888a..7b1077d 100755
--- a/app/src/mar/mar
+++ b/app/src/mar/mar
@@ -10,6 +10,8 @@
 #which is one of the parametres of the script
 #contact: d287572@atos.wmid.amu.edu.pl, walasiek@gmail.com
 
+my $version = '1.0';
+
 use lib "/usr/local/lib/utt";
 use lib "$ENV{'HOME'}/.local/lib/utt";
 
@@ -36,6 +38,7 @@ my $eos="seg(EOS)";
 my $explicit_space=0;
 my $morfield='lem';
 my $tags=0;
+my $show_version = 0;
 
 #read configuration files###########################
 my $file;
@@ -89,11 +92,16 @@ GetOptions("pattern|e=s" => \$pattern,
 	   "command" => \$command,
 	   "action=s" => \$action,
 	   "help|h" => \$help,
-	   "space|s" => \$explicit_space
+	   "space|s" => \$explicit_space,
+       "version|v" => \$show_version,
    );
 
 
 
+if($show_version){
+    print "Version: $version\n";
+    exit 0;
+}
 
 if($help)
 {
@@ -102,16 +110,17 @@ Usage: mar [OPTIONS] [file ..]
 
 Options:
    --pattern -e	PATTERN		Pattern.
-   --bos -E PATTERN             Segment serving as sentence beginning marker. [TODO]
+   --eos -E PATTERN             Segment serving as sentence beginning marker. [TODO]
    --macros=FILE		Read macrodefinitions from FILE. [TODO]
    --define=FILE		Add macrodefinitions from FILE. [TODO]
    --action -a [p][s][P]	Perform only indicated actions.
 				    p - preprocess
 				    s - search
 				    P - postprocess
-				(default pgP)
+				(default psP)
    --command			Print generated shell command and exit.
    --help -h			Print help.
+   --version -v         Script version
 
 In patern you can put any tag. Tags should begin with the @ character.
 They don't have to be closed.