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61
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62
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63ανά Schmidt, Susanne K.Θέματα “...Telecommunication Standards International cooperation Case studies....”
Έκδοση 1998
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64
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65
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68Έκδοση 2005Θέματα “...Telecommunication cables Standards Australia....”
The electronic version of this standard may be found at the Standards NZ website.
Βιβλίο -
69
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70
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71
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72
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73
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74
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80