✦ LIBER ✦

On the pitch of a closed ruled surface

✍ Scribed by H. Hilmi Hacisalihoglu

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

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Unisecant curves on a general ruled surf

✍ Franco Ghione; Alexandru T. Lascu 📂 Article 📅 1978 🏛 Springer 🌐 English ⚖ 294 KB