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  • 1
    Electronic Resource
    Electronic Resource
    Mid-infrared imaging of ultracompact H II regions (1994)
    Springer
    Experimental astronomy 3 (1994), S. 159-160 
    Details
    ISSN: 1572-9508
    Keywords: H II regions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We discuss preliminary results of an 11.7 μm imaging survey of ultracompact H II regions from the Wood and Churchwell radio survey. We find that that the morphologies of ionized gas and warm dust are often significantly different, indicating that an H II region classification scheme should be based on more than radio data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00430147
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Problems in heathland and grassland dynamics (1981)
    Springer
    Plant ecology 46-47 (1981), S. 61-74 
    Details
    ISSN: 1573-5052
    Keywords: Allelopathy ; Competition ; Disease ; Dispersal ; Fire ; Grassland ; Grazing ; Heathland ; Soil ; Stability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A review of factors governing vegetation change in heathlands and grasslands is presented, with emphasis on soil factors. Climate, microclimate, fire, fauna, grazing by vertebrates, grazing by invertebrates, disease, dispersal, establishment, competition, allelopathy, stabilization, soil formation and podzolization are discussed with emphasis on inconsistencies and lacks in our present knowledge. Examples are mainly from NW European Calluna heath and related woodlands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00118384
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    Paper (German National Licenses)
    Fulltext
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