Dorf, R C, Wan, Z, Johnson, D.E. "Laplace Transform The electrical Engineering Handbook Ed. Richard C. Dorf Boca raton crc Press llc. 2000Dorf, R.C., Wan, Z., Johnson, D.E. “Laplace Transform” The Electrical Engineering Handbook Ed. Richard C. Dorf Boca Raton: CRC Press LLC, 2000