caa a22 4500 378857630 CHVBK 20180305123338.0 cr unu---uuuuu 161128e20030301xx s 000 0 eng 10.1524/zkri.218.3.178.20752 doi (NATIONALLICENCE)gruyter-10.1524/zkri.218.3.178.20752 Geminography — The science of twinning applied to the early-stage derivation of non-merohedric twin laws [Elektronische Daten] [Massimo Nespolo, G. Ferraris] The recognition of twinning and the determination of the twin laws are nowadays often entrusted to "black-box" software packages. This approach may be both risky and uneconomical. It is risky because never a procedure should be blindly applied. It is uneconomical if procrastinates the analysis of twinning at the very late stage of structure solution and refinement, whereas in many cases this analysis can and should be applied much earlier. In this paper we present a brief survey of the working strategies to be applied to the structural study of twinned crystals, emphasizing the role of the crystallographer, rather than that of the machine. © 2003 Oldenbourg Wissenschaftsverlag GmbH Crystallography nationallicence Inorganic chemistry nationallicence Organic chemistry nationallicence Nespolo Massimo aut Ferraris G. aut Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 218/3(2003-03-01), 178-181 2194-4946 218:3<178 2003 218 zkri https://doi.org/10.1524/zkri.218.3.178.20752 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zkri.218.3.178.20752 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nespolo Massimo aut NATIONALLICENCE 700 1- Ferraris G. aut NATIONALLICENCE 773 0- Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 218/3(2003-03-01), 178-181 2194-4946 218:3<178 2003 218 zkri CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter