@techreport{KvaernaRingdal1986,
    author = {Kv{\ae}rna, T. and Ringdal, F.},
    type = {Scientific Report: Semiannual Technical Summary},
    institution = {NORSAR},
    number = {1 - 1986/1987},
    pages = {29--48},
    title = {{Stability of various f-k estimation techniques}},
    year = {1986},
    address = {Kjeller, Norway},
    pages = {29-40}
}
