P. Holmberg, A. E. Nordenskiold’s polar expeditions 1858–1883 (Nordenskiold of world fame for the first North East Passage with the Vega ship in 1878–1879) (2018)

P. Holmberg, H. Nevanlinna, Geomagnetic, meteorological and auroral research in Finland from the 18th century to the beginning of the 20th century, Bidrag till kannedom av Finlands natur och folk, The Finnish Society of Sciences and Letters, Helsinki, Finland, No. 191 (2013) (in Finnish)

P. Holmberg, Johan Thorwoste - professor i fysik pa 1700-talet, Nordenskiold-samfundets tidskrift, 70-71, 99-108 (2012)

P. Holmberg, Geomagnetic Measurements in Finland in the 19th Century (& Heikki Nevanlinna), 2nd EHoP Conference, Innsbruck, Austria, 3-4 September 2009, p. 103-121, Living Edition, Pollauberg (2012)

P. Holmberg, Early Radioactivity and Nuclear Physics in Finland, Symposium The Roots of Physics in Europe, Abstracts, Pollaw, 28-29 May 2010

P. Holmberg, Viktor Theodor Homen. Vetenskapsman och politiker. Bidrag till kannedom av Finlands natur och folk, No. 163, Finska Vetenskaps-Societeten, Helsingfors (2005) s. 136

P. Holmberg, H. Nevanlinna, Geomagnetism in Finland: the lasting legacy of Johan Jakob Nervander, Europhysics News, 36(3) 82-85 (2005)

P. Holmberg, The Physical Tourist. Physics in Helsinki, Phys. perspect 6 (2004) 76-113

P. Holmberg, Northern Light Studies and Geomagnetic Observations in Finland in the 19th Century, Volta and the History of Electricity (ed. Fabio Bevilacqua & Enrico A. Giannetto), Universita degli studi di Pavia; editore Ulrico Hioepli, Milano (2003) 183-192

P. Holmberg, Friedrich Wilhelm August Argilander (1799 – 1875) – the first professor of astronomy in Finland, Beitrage zur Astronomiegeschichte, Bd. 2 (1999) 189-195

P. Holmberg, The anatomy of the killer whale middle ear (Orcinus orca) (together with others), Hearing Research 133 (1999) 61-70

P. Holmberg, History of science as a way of teaching science to non-science majors, History of Science and Technology in Education and Trainibng in Europe, Conference Proceedings ed. Claude Debru, Strasbourg, 25-26 June 1998, Pucl. by European Communities (1999) 143-147

P. Holmberg, Friedrich Wilhelm August Argelander (1799–1875): The First Professor of Astronomy in Finland, Beitrдge zur Astronomiegeschichte (2) 189–195 (1999)

P. Holmberg, History of science in European countries: Finland (together with others), History of Science and Technology in Education and Trainibng in Europe, Conference Proceedings ed. Claude Debru, Strasbourg 25-26 June 1998, Publ. by European Communities (1999) 315-319

P. Holmberg, Tidig astronomi vid akademien i Abo, Arkhimedes (3) 26–30 (1998)

P. Holmberg, From dogmatic discussions to observations and planned experiments: some examples from the early aurora borealis research in Finland, Science and Education (5) 267-276 (1996)

P. Holmberg, Early x-rays in Finland, The Emergence of Modern Physics (ed. D. Hoffman, F. Bevilacqau & R.H. Stuewer), Proc. Conf. Commemorating a Century of Physics, Berlin, 22-24 March (1995) 89-95

P. Holmberg, Radiation safety and quality assurance in x-ray diagnostics. Measurements in some radiological clinics in Tartu (together with others), 1895 – 1995 – The centuary of x-rays, Tartu Ulikooli Toimetised, No. 965 (1993) 50-75

P. Holmberg, Ionizing radiation in medicine and health protection (together with others), 1895-1995 – The century of x-rays, Tartu likooli Toimetised, No. 965 (1993) 38-49

P. Holmberg, The history of physics in Finland 1828 – 1918, The history of learning and science in Finland 1828 – 1918, Societas Scientiarum Fennica, Helsinki, No. 5a (1992) 267 p.

P. Holmberg, August Fredrik Sundell – fysiker, matematiker och astronom, Arkhimedes (40) 19–30 (1988)

P. Holmberg, Fysiikkaa biotieteita varten (Finnish Edition) (1977)

P. Holmberg, Textbooks for secondary schools and universities

P. Holmberg, Investigations of excited nuclear states, Dissertation, Helsinki University (1967)