Status quo analysis of the building sector in Croatia and skills of construction workers in the field of energy efficiency and renewable sources of energy : build up skills - Croatia croskills - Banjad Pečur, Ivana; Štirmer, Nina; Milovanović, Bojan; Carević, Ivana, inženjerka građevinarstva; Škrlec, Davor; Balen, Igor; Marđetko Škoro, Nada; Pintarić, Kornelija; Križ-Šelendić, Irena; Brnada, Irena; Miščević, Ljubomir; Štambuk, Ivica, inženjer strojarstva; et al. (Građevinski fakultet, 2013)