1 "Tracks and signs of the birds of Britain andEurope" Christopher Helm 333-, 2003
2 "The origin of birdsand their flight" 38-47, 1998
3 "The origin and evolution of birds" Yale University Press 480-, 1999
4 "The great feathered dinosaur discovery." N?vraumont Publishing Company (rell) : 254-, 2005
5 "The Sibley guide to bird life and behavior" Alfred A. Knopf 587-, 2001
6 "Stratigraphy, petrochemistry, and Quaternarydepositional record of the Songaksan tuff ring Journal of Volcanology and GeochemicalResearch" 1-20, 2002
7 "Review on the stratigraphyand geological age of the hominid footprints-bearingstrata" 236-246, 2006
8 "Radiocarbon dating of total soil organic matter andhumin fraction and its comparison with14 C ages of fossil charcoal" 595-601, 2001
9 "Occurrence of hominid and other vertebrate footprintsof Jeju Island Proceedings of the InternationalSymposium on the Quaternary Footprints ofHominids and Other Vertebrates" 1-26, 2004
10 "Manual of ornithology avian structure and function" Yale University Press 352-, 1998
1 "Tracks and signs of the birds of Britain andEurope" Christopher Helm 333-, 2003
2 "The origin of birdsand their flight" 38-47, 1998
3 "The origin and evolution of birds" Yale University Press 480-, 1999
4 "The great feathered dinosaur discovery." N?vraumont Publishing Company (rell) : 254-, 2005
5 "The Sibley guide to bird life and behavior" Alfred A. Knopf 587-, 2001
6 "Stratigraphy, petrochemistry, and Quaternarydepositional record of the Songaksan tuff ring Journal of Volcanology and GeochemicalResearch" 1-20, 2002
7 "Review on the stratigraphyand geological age of the hominid footprints-bearingstrata" 236-246, 2006
8 "Radiocarbon dating of total soil organic matter andhumin fraction and its comparison with14 C ages of fossil charcoal" 595-601, 2001
9 "Occurrence of hominid and other vertebrate footprintsof Jeju Island Proceedings of the InternationalSymposium on the Quaternary Footprints ofHominids and Other Vertebrates" 1-26, 2004
10 "Manual of ornithology avian structure and function" Yale University Press 352-, 1998
11 "Geologicalreport of Moseulpo-Hanlim sheet" Korea Institute of Geology, Mining and Materials 18-, 2000
12 "Geologic age dating of fossil hominidfootprints from coast of Namjeju" 136-, 2005
13 "Fossilization of feathers" 793-786, 1995
14 "Fossil down feather from the Lower Cretaceous of Brazil" 489-492, 1994
15 "Evolutionary origin of feathers: a problem demanding interdisciplinary communication" 455-460, 2000
16 "Cornell Laboratory of Ornithology Cornell laboratoryof ornithology handbook of bird biology" PrincetonUniversity Press 1248-, 2004
17 "Ageconstraints on human footmarks in Hamori Formation" 149-156, 2005
18 "A study of feathers" University ofCalifornia 243-246, 1916
19 "A guide to North American species" Stackpole Books 456-, 2001
20 "A feather with possibleectoparasite eggs from the Crato Formation" 241-259, 2001