Outburst evolution, historic light curve and a flash-ionized nebula around the WZ Sge-type object PNV J03093063+2638031U. Munari, R. Jurdana-Šepić, P. Ochner and G. CheriniA&A, 584 (2015) A12DOI: https://doi.org/10.1051/0004-6361/201526789