• Identification of two degenerate time- and space-dependent kernels in a parabolic equation [Electronic resource]Pais, Enno; Janno, JaanElectronic journal of differential equations2005 / [20] p. - URL: http://ejde.math.txstate.edu https://digital.library.txst.edu/items/216b6af0-0d14-48f5-9c79-1d542a857a5c
• A parabolic integro-differential identification problem in a barrelled smooth domainJanno, Jaan; Lorenzi, AlfredoZeitschrift für Analysis und ihre Anwendungen = Journal for analysis and its applications2006 / p. 103-130 https://ems.press/journals/zaa/articles/1069
• Paraboolsete integrodiferentsiaalvõrrandite positiivsusprintsiipJanno, JaanAastaraamat 2009 / Eesti Matemaatika Selts2010 / lk. 35-43
• A positivity principle for parabolic integro-differential equations and final overdeterminationJanno, JaanDirect, Inverse and Control Problems for PDE's : DICOP : Cortona, 22-26.09.2008 : abstracts2008 / p. 12 https://www.aimsciences.org/article/doi/10.3934/ipi.2009.3.17