- "Legal Entities in the General Legal Theory"(Research paper presented before the Summer Youth Scientific Colloquium, Kiten, 1994);

- "The Role of Youth NGOs in the Peaceful Development on the Balkans", (before the World Conference "Youth and Peaceful Development on the Balkans", Sofia, 1994);

- "The Activities of NGOs within the framework of the Council of Europe - Convention No. 124 and Recommendation 656 (1972) of PACE and their Follow Up", (in Bulletin "Vest", Legal Program at the Center for Study of Democracy, May, 1997);

- "The Notion of “Non-Governmental Organization" under Bulgarian Law" (1998);

- "The Non-profit Organizations within the Personal Scope of Bulgarian Treaties concerning Avoidance of the Double Taxation"(1998);

- "The Status of NGOs under the Bulgarian Private International Law", (1998)

- "The Tax Treatment of NGOs under Bulgarian Law"(Kluwer Law International, London, 1998)

- "The Financial Environment of the NGOs active in the youth's field and the period of transition in Bulgaria", (research paper presented before the Summer Youth Scientific Colloquium, Kiten, 1996);

- “The Law of the Civil Sector in Bulgaria" (1998, supported by the EC PHARE Program and Civil Society Development Foundation)

- "The Legal Status of the Tchitalista as Non-for-Profit Legal Entities under Bulgarian Legislation" (in collection of articles on non-for-profit law, 1998);

- “The Non-for-Profit Legal Entities of the Private Law and European Civil Society" (Research Paper awarded by the Open Society Foundation, 1997);

- "Legal and Fiscal Framework of the Foundation in Bulgaria" - a contribution to the comparative survey on the EU countries and CEE countries likely to join the EU commissioned by the Institute of Association and Foundation Lawyers (US) and the Bertelsmann Foundation (Germany) (April 1999);

- Assessment of the Sport, Tourism and Leisure Sector within the Bulgarian Civil Society - commissioned by the Institute for Sustainable Communities (US) and the USAID (May 1999);

- Assessment of the Tchitalista Sector: The Chitaliste as a grassroots civil organisation and the prejudices to it within the civil sector in Bulgaria - commissioned by the Institute for Sustainable Communities (US) and the USAID (May 1999);