@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000020, author = {Kanamaru, Takashi and Horita, Takehiko and Okabe, Yoichi}, issue = {1-2}, journal = {Physics letters. Sect. A, General physics, atomic physics and solid state physics}, month = {May}, note = {application/pdf}, pages = {23--30}, title = {Stochastic resonance for the superimposed periodic pulse train}, volume = {255}, year = {1999} }