Evert, Eric
Helton, J. William
Klep, Igor
McCullough, Scott
Funding for this research was provided by:
NSF (DMS 1201498)
National Science Foundation (DMS-1361501)
Royal Society of New Zealand (Marsden Grant)
Slovenian Research Agency (P1-0222 and L1-6722)
Article History
Received: 6 February 2017
First Online: 18 May 2017