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L'usage pratique des raignees en tant qu'indicateurs ecologiques / Jean-Pierre Maelfait, Léon Baert.
by Maelfait, Jean-Pierre | Baert, Léon. Material type:  Book Publisher: [S.l.] : s.n., 1988?]Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4 MAE] (1).
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Araignees des hautes fagnes II. Ecologie (Ecology of Belgian spiders III) / par León L. Baert & Jean Kekenbosch.
by Baert, Léon | Kekenbosch, Jean. Material type: Book Publisher: Bruxelles : [s.n.], 1982Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.44(493) BAE] (1).
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The spider fauna (Araneae) of the forest reserve "Beiaardbos" (Eastern Flanders, Belgium) / Domir De Bakker, Jean-Pierre Maelfait, León Baert.
by Bakker, Domir de | Maelfait, Jean-Pierre | Baert, Léon. Material type: Book Publisher: [S.l.] : [s.n.], 2002Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(493) BAK] (1).
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The Gnaphosidae of the Galápagos archipielago, their distribution and the description of the Galapagoan representatives of the genus Camillina Berland / L. Baert.
by Baert, Léon. Material type: Book Publisher: [S.l.] : Institut Royal des Sciences Naturelles de Belgique, 1994Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(866.4) BAE] (1).
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The spiders (Araneae) of Rapa Nui (Easter Island) / by Lén Baert, Pekka Lehtinen and Konjev Desender.
by Baert, Léon | Lehtinen, Pekka, 1934- | Desender, Konjev, 1956-208. Material type: Book Publisher: [S.l.] : Institut Royal des Sciences Naturelles de Belgique, 1997Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(931) BAE] (1).
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Walckenaeria koenboutjei, a new Siberian erigonid spider (Araneae, Linyphiidae) / L. Baert.
by Baert, Léon. Material type: Book Publisher: [S.l.] : Institut Royal des Sciences Naturelles de Belgique, 1994Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(571.1/5) BAE] (1).
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Spider communities of Belgian coniferous stands / L. Baert.
by Baert, Léon. Material type: Book Publisher: Catania : [s.n.], 1993Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(493) BAE] (1).
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Araignees et opilions de la Gaume dans les environs de la station biologique d'Ethe-Buzenol (Ecology of belgian spiders IV) / León L. Baert, Jean Kekenbosch et Luc Vanhercke.
by Baert, Léon | Kekenbosch, Jean | Vanhercke, Luc. Material type: Book Publisher: Bruxelles : Institut Royal Sciences Naturelles Belge, 1983Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4 BAE] (1).
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Araignees des versants d'exposition nord et sud d'une autoroute en tranchee dans une colline sablonneuse / Léon Baert et Jean-Pierre Maelfait.
by Baert, Léon | Maelfait, Jean-Pierre. Material type: Book Publisher: [S.l.] : [s.n.], 1988Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4 BAE] (1).
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A contribution to the knowlege of the spider fauna of Galápagos (Ecuador) / by L.L. Baert and J.P. Maelfait.
by Baert, Léon | Maelfait, Jean-Pierre. Material type: Book Publisher: [S.l.] : Instiut Royal Sciences Naturelles, 1986Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(866.4) BAE] (1).
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Spiders of the Galápagos Islands. Part IV . Miscellaneous Families II / by L. Baert.
by Baert, Léon. Material type: Book Publisher: [S.l.] : Institut Royal des Sciences Naturelles de Belgique, 1987Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(866.4) BAE] (1).
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Results of the Belgian 1986-expedition : Araneae, and provisional checklist of the spiders of the Galápagos archipielago / by L. Baert, J.P. Maelfait and K. Desender.
by Baert, Léon | Maelfait, Jean-Pierre | Desender, Konjev, 1956-208. Material type: Book Publisher: [S.l.] : Institut Royal des Sciences Naturelles de Belgique, 1989Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(866.4) BAE] (1).
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Results of the Belgian 1988-expedition to the Galápgos islands : Araneae / by L. Baert, J.P. Maelfait and K. Desender.
by Baert, Léon | Maelfait, Jean-Pierre | Desender, Konjev, 1956-208. Material type: Book Publisher: [S.l.] : Institut Royal des Sciences Naturelles de Belgique, 1989Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(866.4)] (1).
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Mysmenidae (Araneae) from Perú / Léon Baert.
by Baert, Léon. Material type: Book Publisher: [S.l.] : Institut Royal des Sciences Naturelles de Belgique, 1990Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(85) BAE] (1).
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Distribution of the arachnid species of the Orders Scorpiones, Solifugae, Amblypygi, Schizomida, Opiliones and Pseudoscorpiones in Galápagos / L. Baert, J.P. Maelfait & K. Desender.
by Baert, Léon | Maelfait, Jean-Pierre | Desender, Konjev, 1956-208. Material type: Book Publisher: [S.l.] : Institut Royal des Sciences Naturelles de Belgique, 1995Availability: Items available for loan: Biblioteca Aranzadi [Call number: 595.4(866.4) BAE] (1).
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