"Zortrax, The Polish 3D Printing Company, Looking To Go Public As It Raises $3.5 Million In Public Bonds". techcrunch.com.
Truy cập ngày 24 tháng 2 năm 2015.  ^ “Zortrax, The Polish 3D Printing Company, Looking To Go Public As It Raises $3.5 Million In Public Bonds”. techcrunch.com.