著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Kushner, Harold J. (Harold Joseph)",Weak convergence methods and singularly perturbed stochastic control and filtering problems,,Birkhäuser,1990,Systems & control,,"0817634371,3764334371",,https://cir.nii.ac.jp/crid/1130000796356986112