@article{oai:nagasaki-u.repo.nii.ac.jp:00007449,
 author = {福山, 豊},
 journal = {長崎大学教育学部自然科学研究報告, Science bulletin of the Faculty of Education, Nagasaki University},
 month = {May},
 note = {The resonance phenomena of a string with nonuniform mass density driven one end by a speaker are considered by applying the multiple wave theory. Analysis of modes of vibration and calculation of the frequencies are done. The results are the same as the case of a string with nonuniform mass density fixed at both ends., 長崎大学教育学部自然科学研究報告. vol.45, p.5-14; 1991},
 pages = {5--14},
 title = {共鳴・共振現象の多重波理論-4 : 一端を振動させた複合弦の強制振動},
 volume = {45},
 year = {1991}
}