Mathematical reflections / 
Titu Andreescu, editor 
 - volúmenes 
<br/><br/>The first two years -- The next two years (2008-2009) -- Two more years (2010-2011) -- Two great years (2012-2013) / Titu Andreescu, Cosmin Pohoata, editors -- Two special years (2014-2015) -- Two wonderful years (2016-2017) -- Two beautiful years (2018-2019) -- Two beautiful years (2020-2021) 
<br/><br/><label>ISBN: </label>0979926920 9780979926921 0979926963 9780979926969 0988562243 (2014) 9780988562240 0988562219 9780988562219 9780996874533 0996874534 9780999342824 0999342827 9780999342893 9781735831572 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matemáticas--Problemas, ejercicios, etc.
<br/><br/><label>LC Class. No.: </label>QA43  / M3745