Stem quartic$ (all stems)
2 papers:
SAC-2012-ZhaoHWA #constraints #diagrams #difference #equation #polynomial- Real solution formulas of cubic and quartic equations applied to generate dynamic diagrams with inequality constraints (TZ, HH, DW, PA), pp. 94–101.
STOC-2010-HaramatyS #on the #polynomial- On the structure of cubic and quartic polynomials (EH, AS), pp. 331–340.