By Lastman G. J.   Wentzell R. A.   in Acta Acustica united with Acustica

ISSN:1610-1928|49|1|64-72

S. Hirzel Verlag‎(1981)‎

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By Lastman G. J.   Sinha N. K.   in International Journal of Systems Science

ISSN:1464-5319|32|3|307-312

Taylor & Francis Ltd‎(2001)‎

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By Lastman G. J.   Sinha N. K.   in International Journal of Systems Science

ISSN:1464-5319|30|5|451-453

Taylor & Francis Ltd‎(1999)‎

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