File:Slipo Paul Otlet.jpeg
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![File:Slipo Paul Otlet.jpeg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Slipo_Paul_Otlet.jpeg/800px-Slipo_Paul_Otlet.jpeg?20171001184849)
Size of this preview: 800 × 509 pixels. Other resolutions: 320 × 204 pixels | 640 × 408 pixels | 1,024 × 652 pixels | 1,492 × 950 pixels.
Original file (1,492 × 950 pixels, file size: 213 KB, MIME type: image/jpeg)