By Baker F. A.   Knowles K. R.   in Northern Journal of Applied Forestry

ISSN:0742-6348|21|3|150-153

Society of American Foresters‎(2004)‎

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By Alexiou C.   Beggs D.   Salama F.D.   Beggs L.   Knowles K.R.   in European Journal of Cardio-Thoracic Surgery

ISSN:1010-7940|17|4|389-395

Elsevier‎(2000)‎

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By Kotidis K.N.   Rogers M.L.   Knowles K.R.   Beggs F.D.   in European Journal of Cardio-Thoracic Surgery

ISSN:1010-7940|21|1|130-132

Elsevier‎(2002)‎

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By Alexiou C.   Salama F.D.   Beggs D.   Brackenbury E.T.   Knowles K.R.   in European Journal of Cardio-Thoracic Surgery

ISSN:1010-7940|15|3|320-326

Elsevier‎(1999)‎

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