vavrova_img_6.jpg
Fig. 7 Image of vertically placed book
![vavrova_img_6.jpg vavrova_img_6.jpg](https://knihovnarevue.nkp.cz/kplus-text-en/obrazky/2020-1/vavrova/vavrova_img_6.jpg/image_preview)
![](https://knihovnarevue.nkp.cz/kplus-text-en/search_icon.png)
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