Groshkova, Teodora and Cunningham, Andrew and Royuela, Luis and Singleton, Nicola and Saggers, Tony and Sedefov, Roumen (2018) Drug affordability-potential tool for comparing illicit drug markets. International Journal of Drug Policy , 56 , pp. 187-196.

Groshkova, Teodora and Cunningham, Andrew and Singleton, Nicola and Laniel, Laurent and Surmont, T and Sedefov, Roumen (2018) The future of drug supply monitoring in Europe. European Monitoring Centre for Drugs and Drug Addiction, Lisbon.

Cunningham, Andrew and Gallegos, Ana and Francis, Will and Evans-Browns, Michael (2015) Harms arising from the use of synthetic cannabinoid products. European Monitoring Centre for Drugs and Drug Addiction.

Freeman, Tom P and Groshkova, Teodora and Cunningham, Andrew and Sedefov, Roumen and Griffiths, Paul and Lynskey, Michael T . (2019) Increasing potency and price of cannabis in Europe, 2006‐2016. Addiction, 114 (6) https://doi.org/10.1111/add.14525