Faessler, K. and Hovila, R. 2016. Improved Hausdorff dimension estimate for vertical projections in the Heisenberg group. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE. 15, special (Feb. 2016), 459-483. DOI:https://doi.org/10.2422/2036-2145.201309_003.