| Przewodnik do badań roślinności wodnej J Szmeja Wydawnictwo Uniwersytetu Gdańskiego, 2006 | 46 | 2006 |
| Effect of disturbances and interspecific competition in isoetid populations J Szmeja Aquatic Botany 48 (3-4), 225-238, 1994 | 45 | 1994 |
| An individual's status in populations of isoetid species J Szmeja Aquatic Botany 48 (3-4), 203-224, 1994 | 42 | 1994 |
| Dynamics of the abundance and spatial organisation of isoetid populations in an oligotrophic lake J Szmeja Aquatic Botany 49 (1), 19-32, 1994 | 39 | 1994 |
| Salvinia natans in medieval wetland deposits in Gdańsk, northern Poland: evidence for the early medieval climate warming J Święta-Musznicka, M Latałowa, J Szmeja, M Badura Journal of Paleolimnology 45, 369-383, 2011 | 34 | 2011 |
| Mechanical strength of stems in aquatic macrophytes K Bociag, A Galka, T Lazarewicz, J Szmeja Acta societatis botanicorum poloniae 78 (3), 181-187, 2009 | 34 | 2009 |
| Phenology of the aquatic fern Salvinia natans (L.) All. in the Vistula Delta in the context of climate warming A Gałka, J Szmeja Limnologica 43 (2), 100-105, 2013 | 33 | 2013 |
| Phenotypic responses to water flow and wave exposure in aquatic plants J Szmeja, A Galka Acta Societatis Botanicorum Poloniae 77 (1), 2008 | 28 | 2008 |
| The structure of a population of Lobelia dortmanna L. along a gradient of increasing depth in an oligotrophic lake J Szmeja Aquatic botany 28 (1), 1-13, 1987 | 26 | 1987 |
| The seasonal development of Lobelia dortmanna L. and annual balance of its population size in an oligotrophic lake J Szmeja Aquatic Botany 28 (1), 15-24, 1987 | 26 | 1987 |
| Comparaison de la structure et du déterminisme des Littorelletea uniflorae en Poméranie (Pologne) et en Bretagne (France) J Szmeja, B Clément Phytocoenologia 19 (1), 1990 | 24 | 1990 |
| Ecological conditions and tolerance limits of isoetids along the southern Baltic coast J Szmeja, K Banaś, K Bociąg Ekologia polska 45 (2), 1997 | 23 | 1997 |
| Changes in the structural and functional diversity of macrophyte communities along an acidity gradient in softwater lakes R Chmara, K Banaś, J Szmeja Flora-Morphology, Distribution, Functional Ecology of Plants 216, 57-64, 2015 | 19 | 2015 |
| The effect of water conditions on the phenology and age structure of Luronium natans [L.] Raf. populations J Szmeja, E Bazydlo Acta Societatis Botanicorum Poloniae 74 (3), 2005 | 19 | 2005 |
| Struktura, organizacja przestrzenna i demografia populacji isoetydów J Szmeja Studium ekologiczne roślin podwodnych. UG, Gdańsk, 1-129, 1992 | 19 | 1992 |
| Rejestr polskich jezior lobeliowych J Szmeja Fragmenta Floristica et Geobotanica. Series: Polonica 3, 347-367, 1996 | 18 | 1996 |
| The avoidance strategy of environmental constraints by an aquatic plant Potamogeton alpinus in running waters A Robionek, K Banaś, R Chmara, J Szmeja Ecology and Evolution 5 (16), 3327-3337, 2015 | 17 | 2015 |
| The disintegration of populations of underwater plants in soft water lakes enriched with acidic organic matter J Szmeja, K Bociag Acta Societatis Botanicorum Poloniae 73 (2), 2004 | 17 | 2004 |
| Factors controlling vegetation structure in peatland lakes—Two conceptual models of plant zonation K Banaś, K Gos, J Szmeja Aquatic botany 96 (1), 42-47, 2012 | 16 | 2012 |
| The ecology of Lobelia dortmanna LI The plasticity of individuals within a constant depth interval in oligotrophic lakes J Szmeja Ekologia Polska 35 (3-4), 1987 | 16 | 1987 |
