Litterae circulares 2022 2022-3 2022-2 2022-1 2021 2021-4 2021-3 2021-2 2021-1 2020 2020-3-4 2020_1-2 2019 2019_2-4 2019_1 2018 2018_4 2018_3 2018_2 2018_1 2017 2017_4 2017_3 2017_2 2017_1 2016 2016_4 2016_3 2016_2 2016_1 2015 2015_4 2015_3 2015_2 2015_1 2014 2014_4 2014_3 2014_2 2014_1 2013 2013_4 2013_3 2013_2 2013_1 2012 2012_4 2012_3 2012_1-2 2011 2011_3 2011_2 2011_1 2010 2010_4 2010_3 2010_2 2010_1 2009 2009_4 2009_3 2009_1-2 2008 2008_4 2008_3 2008_2 2008_1 2007 2007_4 2007_3 2007_2 2007_1 2006 2006_4 2006_3 2006_2 2006_1