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41
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42
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43Published 1994“...HQ 1870.9 .W8722...”
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44
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45
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46
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47Published 1994“...HM 477 .E852 .E13 1994...”
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48
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49
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50
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51Published 1992“...HD 8380.7 .L125...”
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52Published 1993“...HE 242.9 .T772...”
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53
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54
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55Published 1992“...HD 7332.9 .A3 .R332...”
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56
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57Published 1991“...HX 44 .A258...”
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58
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59
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60