“…As a very important aspect of identifying the cluster, Brito and Costa (2009), Felzensztein (2008), Chong Ju Choi et al (1999), Pearl (2010), Xiaoqiang (2009), Jucevičius and Puidokas (2007) distinguish multiple connections between the cluster members. The end product and the role of scientific institutions as an integral part of cluster in order to identify the formation are stressed by Porter (1990), Porter (2000), Schumpeter (1930), Romer (1998), Montresor and Marzetti (2008), Brito and Costa (2009), Felzensztein (2008), Hatani (2009), Williams and Claiborne (2009), Jucevičius and Puidokas (2007).…”