2014 - ”The Saint Michael Altarpiece in Spišská Kapitula, a preliminary report“, Symposium XIX for the Study of Underdrawing and Technology in Painting – Technical Studies of Paintings: Problems of Attribution (15th – 17th Century), Bruges, 11.-13. september 2014
2010 - ”Some Remarks on Jacob de Backer and Gillis Coignet“, Current Research in early 16th-Century Northern European Painting The Flemish Academic Centre for Science and the Arts an IAS– VLAC, (Institute of Advanced Study), Koninklijke Vlaamse Academie van België voor Wetenschappen en Kunsten, Brusel, Belgicko, 2. jún 2010
2010 - ”An Antwerp Art Dealer: Anthonis Palermo“, The Renaissance Society of America Annual Meeting, Benátky, Taliansko, 10. apríl 2010
2007 - ”Jacob Burckhardt and Jan Bialostocki´s The Art of the Renaissance in Eastern Europe“, Perceptions of Continuity and Discontinuity in Europe, c.1300 - c.1550), University of Edinburgh, School of History, Classics and Archeology, Edinburgh, Veľká Británia, 31. august-1. september 2007
2006 - ”The painting St. John the Baptist, St. Barbara and Two Donors´ of the St. Martin Church in Bratislava: The Case of a Corrected Image“, HNA conference 'From Icon to Art in the Netherlands', Baltimore, USA, 10. november 2006
2006 - ”St. John the Baptist, St. Barbara and two Donors (St. Martin Church, Bratislava) “, Symposium XVI for the Study of Underdrawing and Technology in Painting, ´The Quest for the Original´, organized by Laboratoire des oeuvres d´art par les methodes scientifiques UCL (Dir. Prof. Hélene Verougstraete), Illuminare-Centre for the Study of the Illuminated Manuscript, KU Leuven (Dir. Jan van der Stock), Royal Institute for the Cultural Heritage KIKIRPA (Dir. Myriam Serck), Brugy, Belgicko, 21., 22., 23. september 2006
2005 - ”Dreaming about the past: the story about Count Pálffy and others. Medzinárodná konferencia ´National or Universal Antiquities? The nineteenth-century process of “musealization” in Hungary and in Europe“, Collegium Budapest, Institute of Advanced Study, Budapešť, Maďarsko, 30.-31. máj 2005
2003 - ”The use of workshop patterns in The Seller of Fruit and Vegetables of the Slovak National Gallery in Bratislava“ (inv.O249), Colloque XV pour l´étude de la technologie et du dessin sous-jacent dans la peinture. La Peinture ancienne et ses procédés.Copies, répliques, pastiches. Brugy, Belgicko, 11.-13. september 2003
2000 - ”The "Crucifixion" from Frans Floris' Workshop in Slovakia“, Konferencia ´EMBLEMATICA ET ICONOGRAPHIA´ - Themes in painting and literature of the Low Countries from the 16th to the 18th century", Olomouc, Česká republika,
7.-9. december 2000

2011 - I Tatti research fellowship, Villa I Tatti, The Harvard University Center for Italian Renaissance Studies, Florencia, Taliansko
2010 - Senior research fellowship, Centre for Advanced Studies of the Royal Flemish Academy of Belgium for Science and the Arts, VLAC, Brusel, Belgicko
2009 - Grant of the Paul Mellon Centre for Studies in British Art, Londýn, Veľká Británia
2008 - Senior research fellowship, Centre for the History of Collecting, the Frick Museum, New York, USA
2007 - Andrew W.Mellon Visiting Scholar of the American Academy, Rím, Taliansko
2005 - Fellowship of Collegium Budapest, Institute for Advanced Study, Budapešť, Maďarsko
2005 - Grant of the Samuel H.Kress Foundation (príspevok na tlač publikácie ‘Paintings of the 16th century Netherlandish masters: Slovak art collections´)
2004 - Centre for the Study of Fifteenth-Century Painting in the Southern Netherlands and the Principality of Liège, Brusel, Belgicko, výskumný pobyt
2004 - Rijksbureau voor Kunsthistorische Documentatie, The Hague, Holandsko, výskumný pobyt
2003 - Grant of the Fritz Thyssen Stiftung, Freie Universität Berlin, Nemecko
2003 - Grant of the Samuel H.Kress Foundation, Viedenská univerzita, Rakúsko
2002 - Visiting Fellowship of Istituto universitario olandese di storia dell'arte, Florencia, Taliansko
2002 - Consejo Superior de Investigaciones Cientificas, Madrid, Španielsko, výskumný pobyt
2001 - Visiting Fellowship of the Netherlands Institute for Advanced Study, Wassenaar, Holandsko
2001 - National Gallery, Londýn, Veľká Británia, výskumný pobyt
2000 - Nationalmuseum, Stockholm, Švédsko, výskumný pobyt