Hvezdarska rocenka 2011 
Jakub Rozehnala za kolektiv 
 - Praha  Hvezdarna a Planetarium  2010 
 - 180 p.,chart. 
<br/><br/><label>ISBN: </label>977880=86017525 
<br/><br/><label>Subjects--Personal Names: </label><br/>Astronomy Calendar 
<br/><br/><label>Subjects--Index Terms: </label>Astronomical Calendar 
<br/><br/><label>Dewey Class. No.: </label>B207H98f2536