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Cliver4.pdf Why the Sunspot Number Needs Re-Examination
Hudson.pdf Workshop Summary/Discussion
Cagnotti.pdf The Zurich-Locarno Method
Svalgaard5.pdf The Group Sunspot Number
Svalgaard6.pdf The Effect of Weighting in Counting Sunspots
Svalgaard7.pdf What is Wrong with the Group Sunspot Number and How to Fix it
Svalgaard8.pdf Geomagnetic Calibration of Sunspot Numbers
Svalgaard9.pdf Sunspot Number Reconstructions
Brajsa.pdf Tools for Predicting and Reconstructing Properties of Solar Cycles
Clette3.pdf Reconstructions of the group sunspot number 1981 - 2012
Clette4.pdf The International Sunspot Index Ri: the last 50 years
Clette5.pdf Ra versus Ri: a tell-tale comparison
Cliver5.pdf Meeting Highlights & Planning for 3rd and 4th SSN Workshop
DeToma.pdf Sunspot Contrast and Area Over Two Solar Cycles
Crosby.pdf Workshop Summary / Discussion
Foukal.pdf What Have Measurements on the Archival Ca K Plates Taught Us About Solar Irradiance Variation?
Watson.pdf A first systematic look at sunspot statistics from space
Laurenza.pdf The Empirical Mode Decomposition to study the sunspot number variability
Lefevre2.pdf Are the sunspots vanishing?
Penn.pdf Changing Distribution of Umbral IR Magnetic Field Strengths and Application to F10.7
Nagovitsyn.pdf On a possible explanation of Livingston-Penn effect
Pesnell.pdf Solar cycle Predictions
Pevtsov.pdf Sunspot Area as SSN Correlate: Greenwich and Beyond
Pevtsov2.pdf Sunspot Magnetic Fields and umbral areas in Cycles 15-19
Riggs.pdf A Generalized Linear Mixed Model for Enumerated Sunspots
Tlatov.pdf Reconstruction of the characteristics of sunspots in the period 1853-1879
Tlatov2.pdf Numerical processing of sunspot images using the digitized Royal Greenwich Observatory Archive
Tlatov3.pdf Kislovodsk sunspot indices
Vaquero2.pdf Sunspot data from 17th-19th centuries
Friedli.pdf Rudolf Wolf and the Sunspot Number
Poetzi.pdf Sunspot Obervations at the Kanzelhoehe Observatory
Cnossen2.pdf The effects of secular change in the Earth's internal magnetic field on geomagnetic activity
Arlt.pdf Clean WSN and GSN from Schwabe's originals
Arlt2.pdf Historical sunspot observations in their originals
Arlt3.pdf First solar butterﬂy diagram from Schwabe’s observations in 1825–1867
Bertello2.pdf Sunspot field strength measurements from Mt. Wilson Observatory
Bertello3.pdf How well do the Ca II K index time series correlate with the ISN?
DudokdeWit2.pdf TunsBot Dumbers
Usoskin.pdf Cosmogenic radionuclides: an index of Solar activity
Willis.pdf The Greenwich Photo-heliographic Results 1874-1976
Willis2.pdf Reconciling ISN and GSN: Evidence from the Greenwich Photo-heliographic Results
Willis3.pdf The Greenwich Photo-heliographic Results 1874-1976 (Long version)
more to come...