51

The Gametophyte Generation of Some Early Devonian Land Plants

Year:
1993
Language:
english
File:
PDF, 7.49 MB
english, 1993
59

An active rc filter for pcm systems

Year:
1973
Language:
english
File:
PDF, 462 KB
english, 1973
60

State digital filters

Year:
1975
Language:
english
File:
PDF, 308 KB
english, 1975
61

New hydrogen fluoride chemical lasers

Year:
1969
Language:
english
File:
PDF, 247 KB
english, 1969
62

Flash characteristics as an important parameter in chemical laser experiments

Year:
1970
Language:
english
File:
PDF, 185 KB
english, 1970
68

IF5-H2 hydrogen fluoride chemical laser involving a chain reaction

Year:
1970
Language:
english
File:
PDF, 167 KB
english, 1970
69

Effective Techniques to Visualize Filament-Surface Relationships

Year:
2010
Language:
english
File:
PDF, 884 KB
english, 2010
71

A new Lower Devonian plant and the early evolution of leaves

Year:
1984
File:
PDF, 494 KB
1984
75

Phytogeography of Late Silurian macrofloras

Year:
2006
Language:
english
File:
PDF, 583 KB
english, 2006
78

Discussion

Year:
1977
Language:
english
File:
PDF, 331 KB
english, 1977
80

Two Early Mississippian Seeds from the Price Formation of Southwestern Virginia

Year:
1977
Language:
english
File:
PDF, 4.20 MB
english, 1977
87

On the design of RC-active follow-the-leader. Feedback filters

Year:
1977
Language:
english
File:
PDF, 271 KB
english, 1977
90

Devonian in situ spores: a survey and discussion

Year:
1980
Language:
english
File:
PDF, 9.64 MB
english, 1980
91

New hydrogen fluoride chemical lasers--A comparison

Year:
1970
Language:
english
File:
PDF, 303 KB
english, 1970
98

Industrial Perils.

Year:
1910
Language:
english
File:
PDF, 303 KB
english, 1910
100

The Emerald Planet: How Plants Changed Earth's History.By David Beerling

Year:
2008
Language:
english
File:
PDF, 250 KB
english, 2008