^The Long Ukrainian Winters 互联网档案馆的存檔，存档日期2012-01-15. featuring Roald Hoffman, lecture at the World Science Festival.
^The Tense Middle by Roald Hoffmann, story on NPR. Retrieved 29 September 2006.
^Holocaust monument dedicated in western Ukraine. Jewish Telegraphic Agency. July 20, 2009
^Roald Hoffmann's land between chemistry, poetry and philosophy. [2007-10-31]. （原始内容存档于2008-01-19）.
^Hoffmann R and Lipscomb WN, Theory of Polyhedral Molecules. III. Population Analyses and Reactivities for the Carboranes, J. Chem. Phys., 36, 3489 (1962).
^ 8.08.1Hoffmann R and Lipscomb WN, Theory of Polyhedral Molecules. I. Physical Factorizations of the Secular Equation, J. Chem. Phys., 36, 2179 (1962).
^Hoffmann R and Lipscomb WN, The Boron Hydrides; LCAO-MO and Resonance Studies, J.Chem. Phys., 37, 2872 (1962).
^Hoffmann R and Lipscomb WN, Sequential Substitution Reactions on B10H10-2 and B12H12-2, J. Chem. Phys., 37, 520 (1962).
^Hoffmann R and Lipscomb WN, Intramolecular Isomerization and Transformations in Carboranes and Substituted Boron Hydrides, Inor. Chem., 2, 231 (1963).
^Lipscomb WN. Boron Hydrides, W. A. Benjamin Inc., New York, 1963, Chapter 3.
^Hoffmann R. An Extended Hückel Theory. I. Hydrocarbons. J. Chem. Phys, 39, 1397-1412 (1963).
^BoA sings for SICHUAN’S EARTHQUAKE ! ? BoA’s Jewelry Box
For other uses, see Schooner (disambiguation). A traditional gaff topsail schooner Schooner rigging: 1 ) Bowsprit 2 ) Jib & fore staysail 3 ) Fore gaffsail & topsail 4 ) Main staysail 5 ) Main gaff topsail 6 ) Mainsail 7 ) End of boom A schooner / ˈ s k uː n ər / is a type of sailing vessel with fore-and-aft sails on two or more masts. The most common type has two masts, the foremast being shorter than the main. While the schooner was originally gaff-rigged, modern schooners typically carry a Bermuda rig. Contents 1 Etymology 2 History 3 Usage 4 Schooner sail plan 4.1 Schooner rationale 5 Multi-masted schooners 6 Famous schooners 7 Gallery 8 See also 9 References 10 External links Etymology Traditional square topsail schooner Shenandoah , sailing in Nantucket Sound. The first detailed definition of a schooner, describing the vessel as two-masted vessel with fore and aft gaff-rigged sails appeared in ...
