Dan ANGHELESCU - The atom in Romanian philately, catalog 1947 - 1998   Stefan NICOLAU - Posta si filatelistii botosaneni     DAGUIN cancellations in Europe   Stephen Jürgens - A stamp machine of Enrico Dani     ZIUA - SALONUL CAMPIONILOR 2003 catalog   LILIPUT 2005 catalog     Don HELLER - Philatelic Literature on Romania   SALONUL FILATELIC BUCURESTI 2005 - Catalog     AXA Publishing House   Philatelica chimica et physica     Nelu Ivan stamp collector   Sergiu - Marian D. GABUREAC - Romania catalog specializat ilustrat (1903-2006) - Erori