“…In the framework of STP, many control-theoretic problems, e.g., controllability, observability, realization, disturbance decoupling, identification and reconstructibility problems of BCNs were solved (cf. Cheng, 2011, Cheng, Li, & Qi, 2010, Cheng & Qi, 2009, Cheng & Zhao, 2011, Hochma, Margaliot, Fornasini, & Valcher, 2013, Laschov et al, 2013, Li & Wang, 2012, Zhang & Zhang, 2014, Zhao et al, 2010. In Zhang and Zhang (2014), we for the first time solved how to determine observability of BCNs completely that was open for five years.…”