@manual{Grech:2017,
author
=
"R.Grech and G.Kobyłecki",
title
=
"Fotowoltaniczny panel z układem odbioru energii cieplnej, Patent #:W.124722",
note
=
"Date of application: 23-12-2015, Date of acceptance: 15-11-2017",
year
=
"2017",
}