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Journal of Northeastern University(Natural Science)
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15 June 1999, Volume 20 Issue 6
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1999, 20 (
6
): 565-568. DOI:
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1999, 20 (
6
): 569-572. DOI:
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1999, 20 (
6
): 573-575. DOI:
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1999, 20 (
6
): 576-579. DOI:
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1999, 20 (
6
): 580-582. DOI:
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174
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1999, 20 (
6
): 583-586. DOI:
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1999, 20 (
6
): 587-590. DOI:
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186
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1999, 20 (
6
): 591-593. DOI:
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194
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1999, 20 (
6
): 594-597. DOI:
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178
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1999, 20 (
6
): 598-600. DOI:
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174
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1999, 20 (
6
): 601-604. DOI:
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171
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1999, 20 (
6
): 605-607. DOI:
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1999, 20 (
6
): 608-611. DOI:
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160
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1999, 20 (
6
): 612-614. DOI:
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172
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1999, 20 (
6
): 615-618. DOI:
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150
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1999, 20 (
6
): 619-621. DOI:
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165
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1999, 20 (
6
): 622-625. DOI:
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138
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1999, 20 (
6
): 626-629. DOI:
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172
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1999, 20 (
6
): 630-632. DOI:
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188
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1999, 20 (
6
): 633-636. DOI:
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175
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1999, 20 (
6
): 637-640. DOI:
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166
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1999, 20 (
6
): 641-643. DOI:
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136
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1999, 20 (
6
): 644-646. DOI:
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138
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1999, 20 (
6
): 647-650. DOI:
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192
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1999, 20 (
6
): 651-653. DOI:
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117
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1999, 20 (
6
): 654-656. DOI:
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138
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1999, 20 (
6
): 657-660. DOI:
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142
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359
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1999, 20 (
6
): 661-664. DOI:
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163
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519
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1999, 20 (
6
): 665-667. DOI:
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172
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