and continuing development. Related pages [change | change source] Monthly Weather Review. 105 (4). NOAA: 497–507. doi:10.1175/1520-0493(1977) 105<0497:AHSO>2.0.CO;2. Retrieved July 26, 2011. 5. ↑ Doyle, Paul; Miller, Nick (6 November 1996) 169. Strange Signs (7 November 2001) 280. Pig's Company (16 November 2016). "Syrian Opposition group infographics