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161
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162
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163
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164Argitaratua 1983“...North-Holland,...”
Liburua -
165Argitaratua 1985“...North-Holland,...”
Liburua -
166
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167
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168
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169
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170Argitaratua 1992“...North-Holland,...”
Conference Proceeding Liburua -
171Argitaratua 1993“...North-Holland,...”
Liburua -
172Argitaratua 1990“...North-Holland,...”
Liburua -
173
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174
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175Argitaratua 1979“...North-Holland,...”
Conference Proceeding Liburua -
176Argitaratua 1994“...North-Holland,...”
Conference Proceeding Liburua -
177
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178
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179
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180