@inbook{inbook, title  = {{Covariance equivalent forms and evolutionary spectra for nonstationary random processes}},

 publisher = {{Springer-Verlag}},

 url = {{}},

 year = {{1984}},

 month = {{2}},

 author = {{Hammond JK and Harrison RF}},

 doi = {{10.1007/bfb0004940}},

 pages = {{1-14}},

 note = {{Accessed on 2024/10/19}}}