Door Protection from Formula Systems.Published in:Elevator World, 2012, v. 60, n. 2, p. 64Publication type:Article
FORMULA SYSTEMS AT INTERLIFT.Published in:Elevator World, 2011, v. 59, n. 10, p. 44Publication type:Article
FORMULA SYSTEMS APPOINTS DISTRIBUTOR.Published in:Elevator World, 2011, v. 59, n. 4, p. 32Publication type:Article