• ACS Applied Materials and Interfaces
• Acta Astronautica
• Acta Astronomica
• Acta Astronomica Sinica
• Acta Crystallographica Section A
• Acta Geodaetica et Geophysica
• Acta Geodaetica et Geophysica Hungarica
• Acta Geophysica Polonica
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• Acta Montana. Serie AB: Geodynamics & Fuel, Carbon, Mineral Processing
• Acta Physica Polonica A
• Advanced Engineering Materials
• Advances in Agronomy
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• AIP Advances
• Akademie aktuell / Bayerische Akademie der Wissenschaften
• Akademie-Journal : Magazin der Union der Deutschen Akademien der Wissenschaften.
• American Journal of Agricultural and Biological Science
• American Journal of Applied Sciences
• American Journal of Physics
• Anais da Academia Brasileira de Ciencias
• Analytica Chimica Acta
• Analytical and Bioanalytical Chemistry
• Analytical Science Advances
• Annals of Applied Biology
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• Annals of Arid Zone
• Annals of the Brazilian Academy of Sciences
• Annals of the New York Academy of Sciences
• Annual Review of Earth and Planetary Sciences
• Applied and Environmental Microbiology
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• Applied Catalysis A: General
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• Applied Physics A - Material Science & Processing
• Aratora : Zeitschrift des Vereins für Heimatkunde, Geschichte und Schutz von Artern e.V.
• Archäologische Mitteilungen aus Iran und Turan
• Archives of Agronomy and Soil Science
• Archives of Data Science. Series A
• Arctic, Antarctic, and Alpine Research
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• Astronomy and Astrophysics
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• Atmospheric and Oceanic Optics