* Lin، Liwei; Howe، Roger T.; Pisano، Albert P. "Microelectromechanical filters for signal processing"، "Journal of Microelectromechanical Systems"،vol.7، No.3، 1998، p. 286* Lundheim، L. "On Shannon and "Shannon's formula""، "Telektronikk"، vol.
*Lin, Liwei; Howe, Roger T.; Pisano, Albert P. "Microelectromechanical filters for signal processing", "Journal of Microelectromechanical Systems",vol.7, No.3, 1998, p. 286*Lundheim, L. "On Shannon and "Shannon's formula"", "Telektronikk", vol.