| Title: | On orthogonality in nets (English) | 
| Title: | O kolmosti v sietiach (Slovak) | 
| Author: | Lettrich, Jaroslav | 
| Author: | Perenčaj, Ján | 
| Language: | English | 
| Journal: | Časopis pro pěstování matematiky | 
| ISSN: | 0528-2195 | 
| Volume: | 113 | 
| Issue: | 4 | 
| Year: | 1988 | 
| Pages: | 369-386 | 
| Summary lang: | English | 
| Summary lang: | Slovak | 
| Summary lang: | Russian | 
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| Category: | math | 
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| MSC: | 51A15 | 
| idZBL: | Zbl 0681.51003 | 
| idMR: | MR981879 | 
| DOI: | 10.21136/CPM.1988.118356 | 
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| Date available: | 2009-09-23T09:49:16Z | 
| Last updated: | 2020-07-29 | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/118356 | 
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| Reference: | [1] J. Baštinec: Nets satisfying quadrilateral condition.ZN - Geometria (Poznaň), in pгint. | 
| Reference: | [2] V. Havel: Kleine Desargues - Bedingung in Geweben.Časopis pest. mat. 102 (1977), 144-165. Zbl 0359.50024, MR 0500497 | 
| Reference: | [3] V. Havel I. Studnička: Ternärringe ohne Planaritätsbedingung.Časopis pěst. mat. 104 (1979), 65-74. MR 0523573 | 
| Reference: | [4] J. Kadleček: Closuгe condition in the nets.Comm. Gath. Univ. Carol. 19, II (1978), 119-133. | 
| Reference: | [5] J. Klouda: On k-nets of order $(k - 1)^2$  admitting impгoper collineations.Geometriae Dedicata 16 (1984), 201-215. Zbl 0558.51006, MR 0758907 | 
| Reference: | [б] H. Naumann K.  Reidemeister: Über Schliessungssätze der Rechtwinkelgeometrie.Abh. Math. Sem. Univ. Нamb. 21 (1957), 1-12. MR 0088743 | 
| Reference: | [7] K. Schütte: Schliessungssätze für orthogonale Abbildungen euklidischer   Ebenen.Math. Annalen 132 (1956), 106-120. MR 0083738 | 
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