Albu, Lucian-Liviu; Kim, Byung-Yeon and Duchene, Gerard (2002): An attempt to estimate the size of informal economy based on household behaviour modeling. Published in: Romanian Journal of Economic Forecasting , Vol. 1, : pp. 17-24.
Albu, Lucian-Liviu; Kim, Byung-Yeon and Duchene, Gerard (2002): Households’ activities in informal economy: size and behavioural aspects. Published in: Romanian Journal of Economic Forecasting , Vol. 3-4, : pp. 18-28.
